Ferrea Racing Components & Parts
Sport Compact Stainless Steel Valves
& Performance Race Parts
Beehive Valve Springs -
Acura, Honda, Mitsubishi, Toyota

Valve Springs -
Acura & Honda, Alfa Romeo, Audi, BMW, Dodge Neon, Ford Escort & Focus, Ford Ecoboost, Geo Metro/Suzuki Swift 1.0L, GM 2.2L Eco Tec, GM 5 Cylinder, High Pressure Springs, Honda Civic & Prelude & Others, Nissan, Porsche, Scion, Subaru, Toyota, VW Volkswagen

RPM - RON'S PRECISION MACHINE, INC.
69 E. 580 N.
Santaquin, Utah 84655
1-801-754-5338 or Toll free 1-866-700-5877
Hours 9-5 Monday-Friday Mountain Time
Contact us anytime OR by using your e-mail program and type in or copy & paste ron@rpmrons.com to send an e-mail with what you need.

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Engine Rebuild Kit and Parts Online Catalog.

EngineRebuild & Assembly Balancing&
Blueprinting		 CylinderHeads
EngineRebuild Kits EngineStart-up Other Related Web Sites Page 1
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Purchasewarranty & Return Information About the owner of RPM Frequently Asked Questions
MASTER ENGINE REBUILD KITS & PARTS

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TABLE Of Contents
Description Page(s)
Valve Tech Pages 6-9
Materials 6
Super FLO vs FLO 6-1
Valve Length Calculations 7
Sodium Fill – Hollow stem Valves 10
Titanium and Tool Steel Retainers 11
Valves – Titanium Competition 12
Valves – Blanks Titanium Competition 13
Valves – Super Alloy 14
Valves – Blanks Super Alloy 15
Valves – Competition Plus Hollow Stems 16-17
Valves – Competition Plus 18
Valves – Blanks Competition Plus 19
Valves – 6000 Series Competition 20
Valves – 5000 Series Hi Perfor+ mance 22
Springs – Beehive Valve Springs 24
Springs – Valve Springs 25
Retainers – Titanium 26
Retainers – Lightweight Tool Steel 26-1
Retainers – Steel 27
Seat Locators – Spring Seat Locators 28
Lash Caps 29
Locks – Titanium Valve Locks 30
Locks – Steel Valve Locks 30-1
Guides – Copper Bronze Valve Guides 32
Seals – Valve Seals 32-1
.
Domestic Applications Only 31-33
Locks – Steel Valve Super Locks 31
Lifters 33
Sport Compact Applications Only 34-35
Roller Rocker System 34-35
Motorcycle Applications Only 36-43
Valves – Titanium Competition 36
Valves – Hollow Stem 37
Valves – Competition 39
Springs – Beehive Springs 40
Springs – Valve Springs 41
Retainers – Titanium Retainers 42
Retainers – Lightweight Tool Steel Retainers 42-1
Locks – Steel Valve Locks 43
Guides – Copper Bronze Valve Guides 43-1
Seals – Valve Seals 43-2

HIGH POWER VALVETRAIN COMPONENTS

Application GUIDE

Application Guide -

Domestic Applications
 45-74
Desc. Description Page(s)
Pages Application pages

45
Valves Titanium Competition 46-48
Valves Blanks Titanium Competition 48-49
Valves Super Alloy 50-51
Valves Blanks Super Alloy 51
Valves Competition Plus Hollow Stem 51-1 52
Valves Competition Plus 53-58
Valves Blanks Competition Plus 58-60
Valves 6000 Series Competition 60-63
Valves 5000 Series Hi Perfor+ mance 64-65
Lifters Lifters 65-1
Springs Beehive Valve Springs 65-66
Springs Valve Springs 67-69
Retainers Titanium 69-70
Retainers Tool Steel 70-1
Retainers Steel 71
Locks Titanium Valve Locks 71-1
Locks Steel Valve Locks 71-2
Locks Steel Valve Super Locks 72
Seat Locators Spring Seat Locators 72-1
Lash Caps Lash Caps 73
Guides Copper Bronze Valve Guides 73-1
Seals Valve Seals 74


Application Guide
.

Page(s)
Sport Compact Applications 76-112
Super Alloy 76-78
Blanks Super Alloy 78
Competition Plus 78-84
Blanks Competition Plus 84-85
6000 Series Competition 86-88
5000 Series Hi Performance 88-89
Roller Rocker System 89
Springs – Beehive Valve Springs 90
Springs – Valve Springs 91-99
Retainers – Titanium 100-105
Retainers – Tool Steel 105
Locks – Steel Valve Locks 106-107
Seat Locators – Spring Seat Locators 107-110
Lash Caps 110
Lifter Shims 111
Guides – Copper Bronze Valve Guides 111-112
Seals – Valve Seals 112
.
Motorcycle Applications 114-126
Valves – Titanium Competition 114
Valves – Hollow Stem  114
Valves – Competition 115-121
Valves – Blanks Competition 121-122
Springs – Beehive Valve Springs 122
Springs – Valve Springs 122-124
Retainers – Titanium Retainers 124-125
Retainers – Tool Steel Retainers 125
Locks – Steel Valve Locks 126
Seat Locators – Spring Seat Locators 126
Guides – Copper Bronze Valve Guides 126
Seals – Valve Seals 126
Valve Listing by Cylinder Head Manufacturer 127-138


HIGH POWER VALVETRAIN COMPONENTS

Application GUIDE
Description Pages
DOMESTIC 46-74
SPORT COMPACT 76-112
MOTORCYCLE 114-126
VALVE LISTING
by Cylinder Head Manufacturer		 128-138



SPORT COMPACT
Page 90
BEEHIVE VALVE SPRINGS
Part# Type
Material
Application		 O.D. I.D. Seat
Press.		 Open
Press.		 Rate
Inch		 Coil
Bind		 Max Net
Lift
ACURA INTEGRA GSR 1.7L DOHC VTEC 16 VALVE (B17A1) - 1992-1993
ACURA INTEGRA GSR 1.8L DOHC VTEC 16 VALVE (B18C1-C3) - 1994-2000
S2014 Single Beehive Ovate. PAC Alloy Nitrided 22.94 mm 14.73 mm 70 lbs 160 lbs 230 lbs 17.50 mm 12.70 mm
Street Perfor+ mance 30.48 mm 22.27 mm @ 31.75 mm @ 21.75 mm . . .
This Spring requires Ferrea Titanium Retainer (#E12020, and Ferrea Spring Seat Locator #SL1090, (Discard OEM Factory supplied Spring Seat Locator)
ACURA RSX 2.0L - DOHC VTEC 16 VALVE (K20) - 2001-2006
S2018 $18.83 Single Beehive Ovate. PAC Alloy Nitrided 23.87 mm 14.73 mm 90 lbs 225 lbs 342 lbs 24 mm 14 mm
Street Perfor+ mance 28.07 mm 18.85 mm @ 39 mm @ 29 mm . . .
This Spring requires Ferrea Titanium Retainer (#E12027, and Ferrea Spring Seat Locator #SL1094. (Discard OEM Factory supplied Spring Seat Locator)
HONDA DEL SOL 1.6L - DOHC VTEC 16 VALVE (B16A1)-1994-1997
HONDA CIVIC SI 1.6L - DOHC VTEC 16 VALVE (B16A3)-1999-2000
S2014 Single Beehive Ovate. PAC Alloy Nitrided 22.94 mm 14.73 mm 70 lbs 160 lbs 230 lbs 17.50 mm 12.70 mm
Street Perfor+ mance 30.48 mm 22.27 mm @ 31.75 mm @ 21.75 mm . . .
This Spring requires Ferrea Titanium Retainer (#E12020, and Ferrea Spring Seat Locator #SL1090. ( Discard OEM Factory supplied Spring Seat Locator)
HONDA PRELUDE 2.2L - DOHC VTEC 16 VALVE (H22A1-A4) - 1993-2000
S2014 Single Beehive. Ovate. PAC Alloy Nitrided 22.94 mm 14.73 mm 70 lbs 160 lbs 230 lbs 17.50 mm 12.70 mm
Street Perfor+ mance 30.48 mm 22.27 mm @ 31.75 mm @ 21.75 mm . . .
This Spring requires Ferrea Titanium Retainer (#E12020, and Ferrea Spring Seat Locator #SL1090. (Discard OEM Factory supplied Spring Seat Locator)
HONDA S 2000 - F20C - 2000-2003
HONDA S 2000 - F22C - 2004-2008
S2022 $18.83 Single Beehive Ovate. PAC Alloy Nitrided 23.87 mm 23.87 mm 14.73 mm . . . . .
Street Perfor+ mance 28.07 mm 18.85 mm . . . . .
. STOCK CAMSHAFT
. INTAKE Assembly 100 lbs 225 lbs 317 lbs 26.15 mm 13 mm
@ 40.4 mm @ 30.4 mm . . .
. EXHAUST Assembly 112 lbs 235 lbs 312 lbs 26.93 mm 12.1 mm
@ 40.4 mm @ 30.4 mm . . .
This Spring requires Ferrea Titanium Retainer (#E12030, and Ferrea Spring Seat Locator (#SL1120, (EXH) and (#SL 1119, (INT) (Discard OEM Factory supplied Spring Seat Locator)
. STAGE 2 CAMSHAFT I
. NTAKE Assembly 100 lbs 225 lbs 317 lbs 26. 15 mm 13 mm
@ 40.4 mm @ 30.4 . . .
. EXHAUST Assembly 100 lbs 225 lbs 317 lbs 26. 15 mm 13 mm
@ 40.4 mm @ 30.4 mm . . .
This Spring requires Ferrea Titanium Retainer (#E12030, and Ferrea Spring Seat Locator (#SL1121, (EXH) and (#SL 1119, (INT) (Discard OEM Factory supplied Spring Seat Locator)
MITSUBISHI ECLIPSE GS-GST 2.0L - DOHC 16 VALVE (4G63-4G63T) - 1990-1999
S2015 $18.83 Single Beehive Ovate. PAC Alloy 23.87 mm 14.73 mm 90 lbs 225 lbs 342 lbs 23 mm 13.5 mm
Street Perfor+ mance 28.07 mm 18.85 mm @ 38 mm @ 28 mm . . .
This Spring requires Ferrea Titanium Retainer (#E12021, and Ferrea Spring Seat Locator #SL1091, (Discard OEM Factory supplied Spring Seat Locator)
TOYOTA SUPRA 3.0l I/L 6 CYL - DOHC 24 VALVE (2JZGE-2JZGTE) - 1994-1998
S2021 $18.83 Single Beehive Ovate. PAC Alloy 23.87 mm 14.73 mm 110 lbs 240 lbs 330 lbs 21.85 mm 11 mm
Street Perfor+ mance 28.07 mm 18.85 mm @ 35 mm @ 25 mm . . .
This Spring requires Ferrea Titanium Retainer (#E12029, and Factory Spring Shims.

Page 91
VALVE SPRINGS
Part# Type
Material
Application		 O.D. I.D. Seat
Press.		 Open
Press.		 Rate
Inch		 Coil
Bind		 Max Net
Lift
ACURA INTEGRA GSR 1.7L - DOHC VTEC 16 VALVE (B17A1) - 1992-1993
ACURA INTEGRA GSR 1.8L - DOHC VTEC 16 VALVE (B18C1-C3) - 1994-2000
S10027 $34.99 Dual Spring - Hi Pressure 22.8 mm 17.15 mm 100 lbs 220 lbs 305 lbs 20 mm 13.5 mm
Special Alloy 30.10 mm 22.88 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000, or Ferrea Tool Steel Retainer #E20041, and Ferrea Spring Seat Locator (#SL1000, (Discard OEM Spring Seat Locator)
S10064 $34.99 Dual Spring - Turbo 22.88 mm 17.15 mm 95 lbs 215 lbs 305 lbs 19 mm 14 mm
Special Alloy- Pressure 30.10 mm 22.88 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000, or Ferrea Tool Steel Retainer #E20041, and Ferrea Spring Seat Locator (#SL1000. (Discard OEM Spring Seat Locator)
Part# Type
Material
Application		 O.D. I.D. Seat
Press.		 Open
Press.		 Rate
Inch		 Coil
Bind		 Max Net
Lift
S10070 $34.99 Dual Spring - 22.85 mm 17.5 mm 80 lbs 190 lbs 279 lbs 18 mm 14 mm
Special Alloy Endurance Spring 30.45 mm 22.85 mm @ 33 mm @ 23 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000. or E11000LW, or Ferrea Tool Steel Retainer (#E20041, and Ferrea Spring Seat Locator (#SL1004. (Discard OEM Spring Seat Locator). Maximum Retainer Step: 3.6 mm
S10086 $34.99 Dual Spring 22.85 mm 17.5 mm 110 lb 260 lb 292 lbs 20 mm 13 mm
Special Alloy Endurance Application 30.45 mm 22.85 mm @ 34 mm @ 21 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000. or E11000LW. or Ferrea Tool Steel Retainer (#E20041. and Ferrea Spring Seat Locator (#SL1044. (Discard OEM Spring Seat Locator) This Spring requires Ferrea Roller Rocker (#RR1000.
S10104 $39.03 Dual Spring - Turbo - 23.10 mm 17.2 mm 80 lbs 195 lbs 292 lbs 20 mm 13.5 mm
PAC enhanced Alloy 30 mm 23.10 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000, or E11000LW $26.87 or Ferrea Tool Steel Retainer (#E20037, and Ferrea Spring Seat Locator (#SL1000, (Discard OEM Spring Seat Locator)
ACURA RSX 2.0L - DOHC VTEC 16 VALVE (K20) - 2001-2006
S10099 $34.99 Dual Spring- Special Alloy 22.85 mm 17.5 mm 80 lbs 190 lbs 279 lbs 24 mm 14 mm
Endurance Spring 30.45 mm 22.85 mm @ 40 mm @ 30 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11066, and Ferrea Spring Seat Locator (#SL1052. Discard OEM Spring Seat Locator).
S10100 $34.99 Dual Spring- Chrome Silicon 23.1 mm 17.35 mm 105 lbs 225 lbs 305 lbs 22 mm 15 mm
Drag Racing 31 mm 23.1 mm @ 39 mm @ 29 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11066, and Ferrea Spring Seat Locator (#SL1053. (Discard OEM Spring Seat Locator)
S10149 $48.51 Dual Spring - PAC Enhanced 22.86 mm 16.86 mm 140 lbs 265 lbs 317 lbs 20 mm 18.4 mm
High Lift Drag Racing 30.38 mm 22.86 mm @ 40 mm @ 30 mm . . .
This Spring requires either Ferrea Titanium Retainer #E11125, or Ferrea Tool Steel Retainer (#E20054, and Ferrea Spring Seat Locator #SL1136. (Discard OEM Factory Spring Seat Locator).
ACURA TSX 2.4L - DOHC i-VTEC 16 VALVE (K24Z3) - 2009-2014
ACURA ILX 2.4L - DOHC i-VTEC 16 VALVE (K24Z7) - 2013-2015
S10164 $34.99 Dual Spring- PAC Enhanced 23.1 mm 17.35 mm 105 lbs 225 lbs 305 lbs 22 mm 15 mm
Drag / Enduro Racing 31 mm 23.1 mm @ 39 mm @ 29 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11141, and Ferrea Spring Seat Locator (#SL1149, (Discard OEM Spring Seat Locator)
ACURA INTEGRA LS-GS 1.8L - DOHC 16 VALVE (B18A1-B1) - 1990-2000
HONDA CRV 2.0L - DOHC 16 VALVE (B20A-B20Z) - 1997-2000
S10046 $34.99 Dual 20.8 mm 16.51 mm 60 lbs 160 lbs 254 lbs 20 mm 14 mm
Chrome Silicon 28.0 mm 20.8 mm @ 36.5 mm @ 26.5 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11023.
Use (FOR EXHAUST Application ONLY) Ferrea Spring Seat Locator #SL1017. FOR INTAKE Application use Factory supplied Seat Locator.
ALFA ROMEO GTA 156 V6 3.2L - DOHC 24 VALVE - 2002-2005
S10125 Double Spring- Special Alloy 20.8 mm 16.51 mm 75 lbs 175 lbs 254 lbs 17 mm 12.5 mm
Endurance 28.0 mm 20.8 mm @ 31.5 mm @ 21.5 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11099, and Ferrea Spring Seat Locator (#SL1107. Discard OEM Factory supplied Spring Seat Locator.
AUDI 1.8T - DOHC 20 VALVE - 1996-2005
S10055 $25.56 Single Spring - Turbo 21.5 mm 15.1 mm 65 lbs 145 lbs 216 lbs 22.5 mm 11 mm
Special Alloy (Intake - 12 pieces) . . @ 34.5 mm @ 24.5 mm . . .
This Spring requires Ferrea Titanium Retainer #E11031, and Ferrea Spring Seat Locator #SL1025. (Discard OEM Spring Seat Locator).
S10056 $38.95 Dual Spring - Turbo 22.75 mm 17.1 mm 80 lbs 180 lbs 254 lbs 20 mm 12 mm
Special Alloy (Exhaust - 8 pieces) 29.5 mm 22.75 mm @ 32.5 mm @ 22.5 mm . . .
This Spring requires Ferrea Titanium Retainer #E11032, and Ferrea Spring Seat Locator #SL1026, (Discard OEM Spring Seat Locator).

Page 92
VALVE SPRINGS
Part# Type
Material
Application		 O.D. I.D. Seat
Press.		 Open
Press.		 Rate
Inch		 Coil
Bind		 Max Net
Lift
AUDI 2.0T - FSI -DOHC 16 VALVE - 2006-2008
S10157 $25.56 Single Spring - Turbo 22.38 mm 15.52 mm 80 lbs 180 lbs 254 lbs 24.6 mm 11 mm
PAC Enhanced Alloy . . @ 37 mm @ 27 mm . . .
This Spring requires either Ferrea Titanium Retainer #E11129, and Ferrea Spring Seat Locator #SL1142. Discard OEM factory supplied Spring Seat Locator). NOTE: Max Net Lift is limited due to the OEM factory valve seal install height.
AUDI 2.0T TFSI - DOHC 16 VALVE - 2009-2013
S10157 $25.56 Single Spring - Turbo PAC Enhanced Alloy 22.38 mm 15.52 mm . . . . .
. INTAKE Assembly 80 lbs @ 37 mm 180 lbs @ 27 mm 254 lbs 24.6 mm 11 mm
. EXHAUST Assembly 85 lbs 185 lbs 254 lbs 24.6 mm 10.5 mm
@ 36.5 mm @ 26.5 mm . . .
This Spring requires Ferrea Titanium Retainer (INTAKE)
(#E11139, and (EXHAUST) (#E11140, and Ferrea Spring Seat Locator #SL1142,. (Discard OEM Spring Seat Locator)
AUDI 2.7T - DOHC 30 VALVE (APB) - 1998-2004
S10055 $25.56 Single Spring - Turbo 21.5 mm 15.1 mm 65 lbs 145 lbs 216 lbs 22.5 mm 11 mm
Special Alloy (Intake - 18 pieces) . . @ 34.5 mm @ 24.5 mm . . .
This Spring requires Ferrea Titanium Retainer #E11031, and Ferrea Spring Seat Locator #SL1025. (Discard OEM Spring Seat Locator).
S10056 $38.95 Dual Spring - Turbo 22.75 mm 17.1 mm 80 lbs 180 lbs 254 lbs 20 mm 12 mm
Special Alloy (Exhaust - 12 pieces) 29.5 mm 22.75 mm @ 32.5 mm @ 22.5 mm . . .
This Spring requires Ferrea Titanium Retainer #E11032, and Ferrea Spring Seat Locator #SL1026. (Discard OEM Spring Seat Locator).
AUDI RS6 4.2L - DOHC V8 40 VALVE (BCY) - 2002-2004
S10055 $25.56 Single Spring - Turbo 21.5 mm 15.1 mm 65 lbs 145 lbs 216 lbs 22.5 mm 11 mm
Special Alloy (Intake - 24 pieces) . . @ 34.5 mm @ 24.5 mm . . .
This Spring requires Ferrea Titanium Retainer #E11031, and Ferrea Spring Seat Locator #SL1025, (Discard OEM Spring Seat Locator).
AUDI RS6 4.2L - DOHC V8 40 VALVE (BCY) - 2002-2004 . . . .
S10056 $38.95 Dual Spring - Turbo 22.75 mm 17.1 mm 80 lbs 180 lbs 254 lbs 20.5 mm 12 mm
Special Alloy (Exhaust - 16 pieces) 29.5 mm 22.75 mm @ 32.5 mm @ 22.5 mm . . .
This Spring requires Ferrea Titanium Retainer #E11032, and Ferrea Spring Seat Locator #SL1026, (Discard OEM Spring Seat Locator).
AUDI 80 QUATRO 2.2 L - DOHC 20 VALVE (7A) - 1989-1992
AUDI 200 QUATRO 2.2 L - DOHC 20 VALVE (3B) - 1991
AUDI COUPE QUATRO 2.2 L - DOHC 20 VALVE (7A) - 1990-1991
S10115 $38.95 Dual Spring 22.75 mm 17.1 mm 85 lbs 205 lbs 304 lbs 17.5 mm 14 mm
Special Alloy Endurance Application 29.5 mm 22.75 mm @ 33 mm @ 23 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11084, and Ferrea Seat Locator (#SL1073. (Discard OEM Spring Seat Locator).
AUDI RS2 2.2 L - DOHC 20 VALVE (ADU) - 1994-1995
AUDI S4 2.2 L - DOHC 20 VALVE (AAN) - 1992-1994
AUDI S6 2.2 L - DOHC 20 VALVE (AAN) - 1995
S10115 $38.95 Dual Spring 22.75 mm 17.1 mm 85 lbs 205 lbs 304 lbs 17.5 mm 14 mm
Special Alloy Endurance Application 29.5 mm 22.75 mm @ 33 mm @ 23 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11084, and Ferrea Seat Locator (#SL1073, (Discard OEM Spring Seat Locator).
AUDI V8 3.6 L - DOHC 32 VALVE (PT) - 1990-1991
AUDI V8 4.2 L - DOHC 32 VALVE (ABH) - 1992-1994
S10115 $38.95 Dual Spring 22.75 mm 17.1 mm 85 lbs 205 lbs 304 lbs 17.5 mm 14 mm
Special Alloy Endurance Application 29.5 mm 22.75 mm @ 33 mm @ 23 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11084, and Ferrea Seat Locator (#SL1073, (Discard OEM Spring Seat Locator).
BMW E36 3.2L - DOHC 24 VALVE (S42 / M42 / M50/ S50 / M52 / M54) - 1990-2000
S10049 $38.95 Dual Spring - Turbo 22.75 mm 17.1 mm 80 lbs 180 lbs 254 lbs 21 mm 14 mm
Special Alloy 29.5 mm 22.75 mm @ 36 mm @ 26 mm . . .
This Spring requires Ferrea Titanium Retainer #E11025, and Ferrea Spring Seat Locator #SL1021. (Discard OEM Spring Seat Locator).
BMW E46 3.2L - DOHC 24 VALVE (S54) - 2001-2006
S10156 $38.95 Dual Spring - Endurance 20.8 mm 16.51 mm 85 lbs 185 lbs 254 lbs 26.5 mm 14.0 mm
Special Alloy 28.0 mm 20.8 mm @ 41 mm @ 31 mm . . .
This Spring requires Ferrea Titanium Retainer #E11128, and Ferrea Spring Seat Locator #SL1141. (Discard OEM Factory supplied Spring Seat Locator)

Page 93
VALVE SPRINGS
Part# Type
Material
Application		 O.D. I.D. Seat
Press.		 Open
Press.		 Rate
Inch		 Coil
Bind		 Max Net
Lift
BMW E60/E82/E91/E92 3.0L - DOHC 24 VALVE (N54) - 2007-2010
S10158 $25.56 Single Spring - Turbo 22.38 mm 15.52 mm 70 lbs 170 lbs 254 lbs 23.15 mm 12.5 mm
PAC Enhanced Alloy . . @ 36.5 mm @ 26.5 mm . . .
This Spring requires 2 Ferrea Titanium Retainer (EXHAUST)
(#E11130, and (INTAKE) (#E11131, and Factory supplied Spring Seat Locator / Valve Hat Seal.
Part# Type
Material
Application		 O.D. I.D. Seat
Press.		 Open
Press.		 Rate
Inch		 Coil
Bind		 Max Net
Lift
DODGE NEON 2.4 - SRT4 - DOHC 16 VALVE (A853) - 2003-2005
S10107 $34.99 Dual Spring - Turbo 20.8 mm 16.51 mm 90 lbs 200 lbs 279 lbs 23 mm 12 mm
Stage 1 - Special Alloy 28.0 mm 20.8 mm @ 37 mm @ 27 mm . . .
This Spring requires Ferrea Titanium Retainer #E11073, and BOTH, Ferrea Spring Seat Locator (#SL1061, and Factory supplied Spring Seat Locator.
S10108 $37.80 Dual Spring - Turbo 20.8 mm 15.88 mm 105 lbs 235 lbs 330 lbs 23.5 mm 12 mm
Stage 2 - Special Alloy 28.0 mm 20.8 mm @ 37 mm @ 27 mm . . .
This Spring requires Ferrea Titanium Retainer #E11074, and BOTH, Ferrea Spring Seat Locator (#SL1062,. and Factory supplied Spring Seat Locator. . . .
FORD ESCORT 2.0L - DOHC ZETEC 16 VALVE (ZX2) - 1999-2001
FORD FOCUS 2.0L - DOHC ZETEC 16 VALVE (ZX3) - 2000-2001
S10040 $21.59 Single Spring 24.70 mm 18.23 mm 60 lbs 140 lbs 203 lbs 18.5 mm 12.5 mm
Special Alloy . . @ 31.5 mm @ 21.5 mm . . .
This Spring requires Ferrea Titanium Retainer #E11018, and BOTH, Ferrea Spring Seat Locator #SL1014, and Factory supplied Spring Seat Locator
S10041 $34.99 Dual Spring - Turbo 18.23 mm 13.40 mm 75 lbs 195 lbs 305 lbs 18.75 mm 13.5 mm
Special Alloy - 24.70 mm 18.23 mm @ 32.75 mm @ 22.75 mm . .
This Spring requires Ferrea Titanium Retainer #E11018, and Ferrea Spring Seat Locator #SL1015. (Discard OEM Spring Seat Locator)
NOTE: This Spring (#S10041) can be used only with Ferrea Manganese Bronze Valve Guides (for 5.5 mm valve stem) #VG1006, (Intake) and #VG1007, (Exhaust) and Ferrea Valve Seals #VS1000, (Exhaust) and VS1001 $2.62 (intake).
FORD ECOBOOST 2.3L - DOHC 16 VALVE - 2015
S10163 $25.56 Single Spring 24.61 mm 17.40 mm 75 lbs 160 lbs 215.7 lbs 23.78 mm 12.7 mm
PAC Alloy - Turbo Endurance Application . . @ 37.75 mm @ 27.75 mm . . .
This spring requires Ferrea Titanium Retainer
(#E11135, and Ferrea Spring Seat Locator / Valve Hat Seal (#SL1147. (Discard OEM Factory supplied Spring Seat Locator / Valve Hat Seal)		 . .
GEO METRO/SUZUKI SWIFT 1.0 L - SOHC 6 VALVE (G10) - 1995-2001
S10047 $34.99 Dual Spring - Turbo 18.23 mm 13.40 mm 70 lbs 175 lbs 266 lbs 18.75 mm 14 mm
Special Alloy 24.70 mm 18.23 mm @ 35.5 mm @ 25.5 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11024, and Ferrea Spring Seat Locator #SL1018, (Discard OEM Spring Seat Locator)
GM 2.2 ECO TEC - 2000-2008
S10057 $34.99 Dual Spring - Turbo 20.8 mm 16.51 mm 75 lbs 175 lbs 254 lbs 17.5 mm 14 mm
Special Alloy 28 mm 20.8 mm @ 32.5 mm @ 22.5 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11033, and Factory supplied Spring Seat Locator
NOTE: For High Pressure use Both Ferrea Spring Seat Locator #SL1028, And Factory supplied Spring Seat Locator
High Pressure spec.. . . 110 lbs
@ 31 mm		 210 lbs
@ 21 mm		 . . 12.5 mm
GM 5 CYLINDER - L5 - 2002-2006
S10058 Dual Spring - Turbo 20.8 mm 16.51 mm 85 lbs 185 lbs 254 lbs 17.5 mm 13.5 mm
Special Alloy 28 mm 20.8 mm @ 32 mm @ 22 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11034, and both, Ferrea Spring Seat Locator #1027, and Factory supplied Spring Seat Locator.
HIGH PRESSURE SPRINGS (SPECIAL Applications)
S10063 $89.05 Dual Spring 22.6 mm 16.55 mm 150 lbs 450 lbs 462 lbs 18 mm 16.5 mm
Special Alloy Maximum Retainer step 1.9 mm 30.86 mm 22.6 mm @ 35.6 mm @ 19 mm . . .
HONDA ACCORD LX 2.4L - DOHC i-VTEC 16 VALVE (K24Z2) - 2008-2012
HONDA CIVIC Si 2.4L - DOHC i-VTEC 16 VALVE (K24Z7) - 2012-2015
S10164 $34.99 Dual Spring- PAC Enhanced 23.1 mm 17.35 mm 105 lbs 225 lbs 305 lbs 22 mm 15 mm
Drag / Enduro Racing 31 mm 23.1 mm @ 39 mm @ 29 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11141, and Ferrea Spring Seat Locator (#SL1149. (Discard OEM Spring Seat Locator)
HONDA CIVIC 1.6L - SOHC 16 VALVE (D16Z6-Y5-Y7-Y8) - 1992-2000
S10029 $34.99 Single Spring 22.9 mm 15.35 mm 60 lbs 155 lbs 241 lbs 32 mm 17 mm
Special Alloy . . @ 50 mm @ 40 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11010, and Factory supplied Spring Seat Locator (Use only this locator)

Page 94
VALVE SPRINGS
Part# Type
Material
Application		 O.D. I.D. Seat
Press.		 Open
Press.		 Rate
Inch		 Coil
Bind		 Max Net
Lift
HONDA DEL SOL 1.6L - DOHC VTEC 16 VALVE (B16A1) - 1994-1997 . . .
HONDA CIVIC SI 1.6L - DOHC VTEC 16 VALVE (B16A3) - 1999-2000 . . .
S10027 $34.99 Dual Spring - Hi Pressure 22.8 mm 17.15 mm 100 lbs 220 lbs 305 lbs 20 mm 13.5 mm
Special Alloy 30.10 mm 22.88 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000, and Ferrea Spring Seat Locator (#SL1003, (Discard OEM Spring Seat Locator)
S10064 $34.99 Dual Spring - Turbo 22.88 mm 17.15 mm 95 lbs 215 lbs 305 lbs 19 mm 14 mm
Special Alloy- Hi Pressure 30.10 mm 22.88 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000, and Ferrea Spring Seat Locator (#SL1000. (Discard OEM Spring Seat Locator)
S10070 $34.99 Dual Spring - 22.85 mm 17.5 mm 80 lbs 190 lbs 279 lbs 18 mm 14 mm
Special Alloy Endurance Spring 30.45 mm 22.85 mm @ 33 mm @ 23 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000, and Ferrea Spring Seat Locator (#SL1004. Discard OEM Spring Seat Locator). Maximum Retainer Step: 3.6 mm
S10086 $34.99 Dual Spring 22.85 mm 17.5 mm 110 lb 260 lb 292 lbs 20 mm 13 mm
Special Alloy Endurance Application 30.45 mm 22.85 mm . @ 34 mm . @ 21 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000, and Ferrea Spring Seat Locator
(#SL1044. (Discard OEM Spring Seat Locator) This Spring requires Ferrea Roller Rocker System (#RR1000.
S10104 $39.03 Dual Spring - Turbo - 23.10 mm 17.2 mm 80 lbs 195 lbs 292 lbs 20 mm 13.5 mm
PAC enhanced Alloy 30 mm 23.10 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000, OR E11000LW, and Ferrea Spring Seat Locator (#SL1000 $7.56 (Discard OEM Spring Seat Locator)
HONDA CIVIC TYPE-R 2.0L - DOHC VTEC 16 VALVE (K20C1-TURBO) - 2017-2018
S10165 $25.56 Single Spring - Turbo Special Alloy Endurance Application 23.5 mm 15.7 mm . . . . .
INTAKE Assembly 75 lbs @ 46.3 mm 185 lbs @ 36.3 mm 279 lbs 33.3 mm 12 mm
EXHAUST Assembly 75 lbs @ 44.3 mm 185 lbs @ 34.3 mm 279 lbs 31.3 mm 12 mm
This Spring requires Ferrea Tool Steel Retainer (#E20056, and Ferrea Spring Seat #SL1152, (EXH Side) and Ferrea Spring Seat Locator (#SL1151, (INT Side). (Discard OEM Spring Seat Locator)
S10166 $34.99 Single Spring - Turbo Special Alloy 22.9 mm 15.35 mm . . . . .
Drag Application
**Can only be used with Ferrea Roller Rocker Kit (#RR1006**.
INTAKE Assembly 75 lbs 182 lbs 272 lbs 35.6 mm 15.25 mm
@ 51.85 mm @ 41.85 mm . .
EXHAUST Assembly 75 lbs 182 lbs 272 lbs 33.6 mm 15.25 mm
@ 49.85 mm @ 39.85 mm . .
This Spring requires Ferrea Titanium Retainer (#E11142, and Ferrea Spring Seat #SL1154 $7.56 (EXH, Side) and Ferrea Spring SeaLocator (#SL1153, (INT Side). (Discard OEM Spring Seat Locator)
HONDA PRELUDE 2.2L - DOHC VTEC 16 VALVE (H22A1-A4) - 1993-2000
S10027 $34.99 Dual Spring - Hi Pressure 22.88 mm 17.15 mm 100 lbs 220 lbs 305 lbs 20 mm 13.5 mm
Special Alloy 30.10 mm 22.88 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000, and Ferrea Spring Seat Locator (#SL1003. (Discard OEM Spring Seat Locator)
S10064 $34.99 Dual Spring - Turbo 22.88 mm 17.15 mm 95 lbs 215 lbs 305 lbs 19 mm 14 mm
Special Alloy- Hi Pressure 30.10 mm 22.88 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000, and Ferrea Spring Seat Locator (#SL1000. (Discard OEM Spring Seat Locator)
S10070 $34.99 Dual Spring - 22.85 mm 17.5 mm 80 lbs 190 lbs 279 lbs 18 mm 14 mm
Special Alloy Endurance Spring 30.45 mm 22.85 mm @ 33 mm @ 23 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000, and BOTH, Ferrea Spring Seat Locator (#SL1003, AND Factory supplied Spring Seat Locator.
. . . . . . . . .
S10104 $39.03 Dual Spring - Turbo - 23.10 mm 17.2 mm 80 lbs 195 lbs 292 lbs 20 mm 13.5 mm
PAC enhanced Alloy 30 mm 23.10 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000, OR E11000LW, and Ferrea Spring Seat Locator (#SL1003. (Discard OEM Spring Seat Locator)
HONDA S 2000 - F20C - 2000-2003
HONDA S 2000 - F22C - 2004-2008
S10074 $34.99 Dual Spring - 22.85 mm 17.5 mm 90 lbs 210 lbs 292 lbs 28 mm 13 mm
Special Alloy Turbo - Endurance Spring 30.45 mm 22.85 mm @ 42 mm @ 32 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11045, and Ferrea Spring Seat Locator (#SL1035. AND Factory supplied Spring Seat Locator.

Page 95
VALVE SPRINGS
Part# Type
Material
Application		 O.D. I.D. Seat
Press.		 Open
Press.		 Rate
Inch		 Coil
Bind		 Max Net
Lift
HONDA DEL SOL 1.6L - DOHC VTEC 16 VALVE (B16A1) - 1994-1997
HONDA CIVIC SI 1.6L - DOHC VTEC 16 VALVE (B16A3) - 1999-2000
S10027 $34.99 Dual Spring - Hi Pressure 22.8 mm 17.15 mm 100 lbs 220 lbs 305 lbs 20 mm 13.5 mm
Special Alloy 30.10 mm 22.88 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000 $25.52 and Ferrea Spring Seat Locator (#SL1003 $7.56 (Discard OEM Spring Seat Locator)
S10064 $34.99 Dual Spring - Turbo 22.88 mm 17.15 mm 95 lbs 215 lbs 305 lbs 19 mm 14 mm
Special Alloy- Hi Pressure 30.10 mm 22.88 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000 $25.52 and Ferrea Spring Seat Locator (#SL1000 $7.56 (Discard OEM Spring Seat Locator)
S10070 $34.99 Dual Spring - 22.85 mm 17.5 mm 80 lbs 190 lbs 279 lbs 18 mm 14 mm
Special Alloy Endurance Spring 30.45 mm 22.85 mm @ 33 mm @ 23 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000 $25.52 and Ferrea Spring Seat Locator (#SL1004.(Discard OEM Spring Seat Locator). Maximum Retainer Step: 3.6 mm
S10086 $34.99 Dual Spring 22.85 mm 17.5 mm 110 lb 260 lb 292 lbs 20 mm 13 mm
Special Alloy Endurance Application 30.45 mm 22.85 mm . @ 34 mm . @ 21 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000 $25.52 and Ferrea Spring Seat Locator (#SL1044. (Discard OEM Spring Seat Locator) This Spring requires Ferrea Roller Rocker System (#RR1000.
S10104 $39.03 Dual Spring - Turbo - 23.10 mm 17.2 mm 80 lbs 195 lbs 292 lbs 20 mm 13.5 mm
PAC enhanced Alloy 30 mm 23.10 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000 $25.52 OR E11000LW $26.87 and Ferrea Spring Seat Locator (#SL1000 $7.56 (Discard OEM Spring Seat Locator)
HONDA CIVIC TYPE-R 2.0L - DOHC VTEC 16 VALVE (K20C1-TURBO) - 2017-2018 .
S10165 $25.56 Single Spring - Turbo 23.5 mm 15.7 mm . . . . .
Special Alloy Endurance Application
INTAKE Assembly 75 lbs 185 lbs 279 lbs 33.3 mm 12 mm
@ 46.3 mm @ 36.3 mm . . .
EXHAUST Assembly 75 lbs 185 lbs 279 lbs 31.3 mm 12 mm
@ 44.3 mm @ 34.3 mm . . .
This Spring requires Ferrea Tool Steel Retainer (#E20056 $24.25 and Ferrea Spring Seat #SL1152 $7.56 (EXH Side) and Ferrea Spring Seat Locator (#SL1151 $7.56 (INT Side). (Discard OEM Spring Seat Locator)
S10166 $34.99 Single Spring - Turbo Special Alloy 22.9 mm 15.35 mm . . . . .
Drag Application **Can only be used with Ferrea Roller Rocker Kit (#RR1006**,
INTAKE Assembly 75 lbs 182 lbs 272 lbs 35.6 mm 15.25 mm
@ 51.85 mm @ 41.85 mm . .
EXHAUST Assembly 75 lbs 182 lbs 272 lbs 33.6 mm 15.25 mm
@ 49.85 mm @ 39.85 mm . .
This Spring requires Ferrea Titanium Retainer (#E11142 $25.52 and Ferrea Spring Seat #SL1154 $7.56 (EXH Side) and Ferrea Spring Seat Locator (#SL1153 $7.56 (INT Side). (Discard OEM Spring Seat Locator)
HONDA PRELUDE 2.2L - DOHC VTEC 16 VALVE (H22A1-A4) - 1993-2000
S10027 $34.99 Dual Spring - Hi Pressure 22.88 mm 17.15 mm 100 lbs 220 lbs 305 lbs 20 mm 13.5 mm
Special Alloy 30.10 mm 22.88 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000 $25.52 and Ferrea Spring Seat Locator (#SL1003 $7.56 (Discard OEM Spring Seat Locator)
S10064 $34.99 Dual Spring - Turbo 22.88 mm 17.15 mm 95 lbs 215 lbs 305 lbs 19 mm 14 mm
Special Alloy- Hi Pressure 30.10 mm 22.88 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000 $25.52 and Ferrea Spring Seat Locator (#SL1000 $7.56 (Discard OEM Spring Seat Locator)
S10070 $34.99 Dual Spring - 22.85 mm 17.5 mm 80 lbs 190 lbs 279 lbs 18 mm 14 mm
Special Alloy Endurance Spring 30.45 mm 22.85 mm @ 33 mm @ 23 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000, and BOTH, Ferrea Spring Seat Locator (#SL1003, AND Factory supplied Spring Seat Locator.
S10104 $39.03 Dual Spring - Turbo - 23.10 mm 17.2 mm 80 lbs 195 lbs 292 lbs 20 mm 13.5 mm
PAC enhanced Alloy 30 mm 23.10 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11000 $25.52 OR E11000LW $26.87 and Ferrea Spring Seat Locator (#SL1003 $7.56 (Discard OEM Spring Seat Locator)
HONDA S 2000 - F20C - 2000-2003
HONDA S 2000 - F22C - 2004-2008
S10074 $34.99 Dual Spring - 22.85 mm 17.5 mm 90 lbs 210 lbs 292 lbs 28 mm 13 mm
Special Alloy Turbo - Endurance Spring 30.45 mm 22.85 mm @ 42 mm @ 32 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11045, and Ferrea Spring Seat Locator (#SL1035, AND Factory supplied Spring Seat Locator.

Page 96
VALVE SPRINGS
Part# Type
Material
Application		 O.D. I.D. Seat
Press.		 Open
Press.		 Rate
Inch		 Coil
Bind		 Max Net
Lift
NISSAN ALTIMA 2.4L - DOHC 16 VALVE (KA24DE) - 1995-1999
NISSAN 240 SX 2.4L - DOHC 16 VALVE (KA24DE) - 1991-1998
S10043 $34.99 Dual Spring - Turbo 23.10 mm 17.2 mm 80 lbs 195 lbs 254 lbs 22 mm 12.5 mm
. PAC enhanced Alloy 30 mm 23.10 mm @ 36 mm @ 26 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11021 $25.52 and BOTH Ferrea Spring Seat Locator #SL1064 $7.56 and Factory supplied Spring Seat Locator
NISSAN GT-R 3.8 L V-6 - DOHC 24 VALVE (VR38DETT) - 2009-2010
S10136 $34.99 Dual Spring - Turbo 20.8 mm 15.88 mm . . . . .
Special Alloy 28.0 mm 20.8 mm . . . . .
INTAKE Assembly 90 lbs 212 lbs 309.6 lbs 23.5 mm 13 mm
@ 37.5 mm @ 27.5 mm . . .
EXHAUST Assembly 90 lbs 212 lbs 309.6 lbs 19.6 mm 13.5 mm
@ 34.35 mm @ 24.35 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11106 $25.52 and Ferrea Spring Seat Locator #SL1118 $6.03 (EXH Side) and Ferrea Spring Seat Locator #SL1115 $7.56 (INT Side). (Discard OEM Spring Seat Locator)
S10137 $25.56 Single Spring 25.19 mm 18.3 mm 90 lbs 160 lbs 177 lbs 22.65 mm 11 mm .
Special Alloy . . @ 35 mm @ 25 mm . . .
This Spring requires 2 Ferrea Titanium Retainer (EXHAUST) (#E11110 $25.52 and (INTAKE) (#E11107 $25.52 and Ferrea Spring Seat Locator (#SL1116. Discard OEM Factory supplied Spring Seat Locator.
NISSAN PATROL 4.5L 6 CYL IN LINE - 12 VALVE - (TB45E) - 1997-2004
S10128 $34.99 Dual Spring - Chr Silicon 23.1 mm 17.35 mm 70 lbs 195 lbs 317 lbs 20.5 mm 14.15 mm
Endurance 31 mm 23.1 mm @ 40.6 mm @ 30.6 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11102 $25.52 and Ferrea Spring Seat Locator (#SL1111 $7.56 Discard OEM Factory supplied Spring Seat Locator.
NISSAN PATROL 4.8L 6 CYL IN LINE - 24 VALVE - (TB48DE) - 2004-2010
S10114 $34.99 Dual Spring - Turbo 20.8 mm 16.51 mm 85 lbs 190 lbs 266 lbs 22.85 mm 12 mm .
Special Alloy 28.0 mm 20.8 mm @ 36.85 mm @ 26.85 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11083 $25.52 and Ferrea Spring Seat Locator (#SL1070 $7.56 Discard OEM Factory supplied Spring Seat Locator.
S10133 $21.59 Single Spring 28.0 mm 20.8 mm 73 lbs 155 lbs 208 lbs 22.85 mm 12 mm .
Special Alloy . . @ 35.85 mm @ 25.85 mm . .
This Spring requires Ferrea Titanium Retainer (#E11109 $30.86 and Ferrea Spring Seat Locator (#SL1070 $7.56 Discard OEM Factory supplied Spring Seat Locator.
NISSAN SENTRA SE-R 2.0L - DOHC 16 VALVE (SR20DE-SR20DET) - 1991-1998
S10038 $34.99 Dual Spring - Turbo 23.10 mm 17.2 mm 80 lbs 195 lbs 254 lbs 22 mm 12.5 mm
PAC enhanced Alloy 30 mm 23.10 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11002 $25.52 and Ferrea Spring Seat Locator (#SL1011. (Discard OEM Spring Seat Locator)
NISSAN SKYLINE 6 CYL IN LINE - 24 VALVE - (RB25DET) - 1993-1997
S10112 $34.99 Dual Spring - Turbo 20.8 mm 16.51 mm . . . . .
Special Alloy 28.0 mm 20.8 mm . . . . .
INTAKE Assembly 110 lbs 215 lbs 266 lbs 18 mm 10.5 mm
@ 30.55 mm @ 20.55 mm . .
EXHAUST Assembly 90 lbs 190 lbs 254 lbs 21.5 mm 10.5 mm
@ 34.50 mm @ 24.50 mm . .
This Spring requires Ferrea Titanium Retainer (#E11082 $25.52 and Ferrea Spring Seat Locator #SL 1068 (EXH Side) and Ferrea Spring Seat Locator #SL1069 $9.41 (INT Side). (Discard OEM Spring Seat Locator) WARNING: DUE TO VALVETRAIN Assembly INSTALLED HIEGHTS, MAXIMUM VALVE NET LIFT MUST NOT EXCEED 10.5 MM BECAUSE OF VALVE SEAL TO SPRING RETAINER CLEARANCES.
.
NISSAN SKYLINE 6 CYL IN LINE - 24 VALVE (NEO) - 1998-2002
S10078 $34.99 Dual Spring - Turbo 20.8 mm 16.51 mm 95 lbs 195 lbs 254 lbs 17.5 mm 12 mm
Special Alloy 28.0 mm 20.8 mm @ 30 mm @ 20 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11048, and BOTH, Ferrea Spring Seat Locator (#SL1037, (INT) and #SL1150, (EXH) AND Factory supplied Spring Seat Locator. Maximum Retainer Step 2 mm .

Page 97
VALVE SPRINGS
Part# Type
Material
Application		 O.D. I.D. Seat
Press.		 Open
Press.		 Rate
Inch		 Coil
Bind		 Max Net
Lift
NISSAN SKYLINE 6 CYL IN LINE - 24 VALVE - (RB26) - 1989-2002
S10090 $34.99 Dual Spring - Turbo 20.8 mm 16.51 mm 110 lbs 210 lbs 254 lbs 26.5 mm 12 mm
. Special Alloy 28.0 mm 20.8 mm @ 39 mm @ 29 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11057 $25.52 and Ferrea Spring Seat Locator (#SL1047 $9.41 (Discard OEM Spring Seat Locator)
PORSCHE 996TT 3.6L - FLAT 6 CYL - DOHC 24 VALVE - 2000-2005
S10122 $34.99 Dual Spring - Turbo 20.8 mm 15.88 mm 98 lbs. 220 lbs 309 lbs 20.0 mm 11.2 mm
. Special Alloy 28 mm 20.8 mm @ 33.5 mm @ 24.5 mm . . .
This spring requires Ferrea Titanium Retainer (#E11094 $25.52 AND Ferrea Spring Seat Locator (#SL1099. (Discard OEM Spring Seat Locators)
NOTE: Ferrea Seat Locators must be installed before valve seal installation and Max Net Lift is limited to 11.20 mm due to spring retainer and valve seal clearance.
SCION tC 2.4L - DOHC 16 VALVE (2AZFE) - 2005
S10110 $25.56 Single Spring - Turbo 25.19 mm 18.3 mm 80 lbs 150 lbs 180 lbs 20.5 mm 12.5 mm
Special Alloy Endurance Spring . . @ 34.2 mm @ 24.2 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11075 $25.52 and Ferrea Spring Seat Locator (#SL1063 $7.56 (Discard OEM Spring Seat Locator)
SCION tC 2.5L - DOHC 16 VALVE (2ARFE) - 2011
S10143 $25.56 Single Spring 25.19 mm 18.3 mm 78 lbs. 160 lbs. 208 lbs 22.6 mm 14.5 mm
Stage 1 Endurance Application . . @ 38.7 mm @ 28.7 mm . . .
This spring requires Ferrea Titanium Retainer (#E11118 $25.52 AND Ferrea Spring Seat Locator (#SL1126. (Discard OEM Factory Spring Seat Locator)
S10144 $34.99 Dual Spring - Turbo 18.82 mm 13.84 mm 80 lbs. 180 lbs. 254 lbs 21.5 mm 13 mm
Special AlloStage 2 Road/ Drag Application 25.19 mm 18.82 mm @ 35.7 mm @ 25.7 mm . . .
This spring requires Ferrea Titanium Retainer (#E11117 $25.52 AND Ferrea Spring Seat Locator (#SL1126. (Discard OEM Factory Spring Seat Locator)
SCION FR-S 2.0L - DOHC 16 VALVE (4U-GSE) - 2012-2015
S10154 $21.59 Single Spring - Endurance 28.0 mm 20.8 mm 60 lbs 135 lbs 190 lbs 18.6 mm 14.5 mm
Special Alloy . . @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Tool Steel Retainer #E20055, and Ferrea Spring Seat Locator #SL1139. (Discard OEM Factory Spring Seat Locator).
S10155 $34.99 Dual Spring - Turbo 20.8 mm 16.51 mm 70 lbs 170 lbs 254 lbs 18.6 mm 14.5 mm
Special Alloy 28.0 mm 20.8 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer #E11127, and Ferrea Spring Seat Locator #SL1140. (Discard OEM Factory Spring Seat Locator).
SUBARU WRX 2.0L - DOHC 16 VALVE (EJ20) - 2001-2008
S10071 $34.99 Dual Spring - 20.8 mm 15.88 mm 75 lbs 200 lbs 317 lbs 21.5 mm 15 mm
Special Alloy Turbo - Drag Racing 28 mm 20.8 mm @ 39.4 mm @ 29.4 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11043 $25.52 and Ferrea Spring Seat Locator (#SL1034. (Discard OEM Spring Seat Locator)
S10072 $34.99 Dual Spring - 20.8 mm 16.51 mm 70 lbs 165 lbs 241 lbs 20 mm 15 mm
Special Alloy Turbo Endurance Spring 28 mm 20.8 mm @ 39.4 mm @ 29.4 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11044 $25.52 and Ferrea Spring Seat Locator (#SL1034 $9.41 (Discard OEM Spring Seat Locator)
SUBARU WRX 2.0L - DOHC 16 VALVE (STI) - 2004-2008
S10097 $34.99 Dual Spring- Special Alloy 20.8 mm 15.88 mm 90 lbs 215 lbs 317 lbs 21.5 mm 14 mm
Turbo - Drag Racing 28 mm 20.8 mm @ 36 mm @ 26 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11064 $25.52 and Ferrea Spring Seat Locator (#SL1051 $9.41 (Discard OEM Spring Seat Locator)
S10098 $34.99 Dual Spring- Special Alloy 20.8 mm 16.51 mm 80 lbs 180 lbs 254 lbs 21.0 mm 14 mm
Turbo- Endurance Racing 28 mm 20.8 mm @ 36 mm @ 26 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11065 $25.52 and Ferrea Spring Seat Locator (#SL1051 $9.41 (Discard OEM Spring Seat Locator)
SUBARU BRZ 2.0L - DOHC 16 VALVE (FA20) - 2012-2015
S10154 $21.59 Single Spring - Endurance 28.0 mm 20.8 mm 60 lbs 135 lbs 190 lbs 18.6 mm 14.5 mm
Special Alloy . . @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Tool Steel Retainer #E20055, and Ferrea Spring Seat Locator #SL1139. (Discard OEM Factory Spring Seat Locator).
S10155 $34.99 Dual Spring - Turbo 20.8 mm 16.51 mm 70 lbs 170 lbs 254 lbs 18.6 mm 14.5 mm
Special Alloy 28.0 mm 20.8 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer #E11127, and Ferrea Spring Seat Locator #SL1140. (Discard OEM Factory Spring Seat Locator).

Part# Type
Material
Application		 O.D. I.D. Seat
Press.		 Open
Press.		 Rate
Inch		 Coil
Bind		 Max Net
Lift

Page 98
VALVE SPRINGS
Part# Type
Material
Application		 O.D. I.D. Seat
Press.		 Open
Press.		 Rate
Inch		 Coil
Bind		 Max Net
Lift
TOYOTA 4AG 1.6L - DOHC 16 VALVE (ATLANTIC) - 1983-1988
S10080 $25.56 Single Spring - 23.5 mm 16.46 mm 40 lbs 120 lbs 203 lbs 22 mm 12 mm
Special Alloy . . @ 35 mm @ 25 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11046, and Factory supplied Spring Seat Locator.
TOYOTA 4AGELU 1.6L - DOHC 20 VALVE - 1995-1998
S10150 $29.54 Single Spring - Endurance 20.32 mm 14.23 mm 40 lbs 133 lbs 236 lbs 25.15 mm 11 mm
Special Alloy . . @ 37 mm @ 27 mm . . .
This Spring requires Ferrea Tool Steel Retainer (#E20052, Ferrea Valve Locks #K10106 $7.41 and Ferrea Spring Seat Locator #SL1133. (Discard OEM Factory Spring Seat Locator). TECH NOTE: Ferrea Pro Springs are designed with progressive wound coils. Assemble stacked coils of spring at the bottom, on top of spring seat locator.
TOYOTA 1.8L DOHC 16 VALVE (2ZZGE) 2003-2006
S10123 $34.99 Dual Spring - Endurance 19.05 mm 13.95 mm 70 lbs 178 lbs 274 lbs 24 mm 13.5 mm
Special Alloy 25.30 mm 19.05 mm @ 38.5 mm @ 28.5 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11097 $25.52 and Ferrea Spring Seat Locator (#SL1105. (Discard OEM Factory supplied Spring Seat Locator)
TOYOTA MR2 2.0L - DOHC 16 VALVE (TURBO 3SGTE) - 1990-1995
S10034 $34.99 Dual 20.8 mm 16.51 mm 65 lbs 185 lbs 305 lbs 20 mm 14 mm
Chrome Silicon 28.0 mm 20.8 mm @ 35 mm @ 25 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11011, and BOTH, Ferrea Spring Seat Locator (#SL1007, and Factory supplied Spring Seat Locator.
TOYOTA MR2 2.0L - DOHC 16 VALVE (3SGTE GEN3) - 1996-1998
S10151 $34.99 Dual Spring - Endurance 20.8 mm 16.51 mm 80 lbs 178 lbs 249 lbs 25.1 mm 11.5 mm
Special Alloy 28 mm 20.8 mm @ 37.6 mm @ 27.6 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11123 $25.52 and Ferrea Spring Seat Locators (#SL1134. Discard OEM Factory Spring Seat Locator.
TOYOTA 2.0 L - DOHC 16 VALVE (3SGE)
S10073 $34.99 Dual Spring - Turbo 20.8 mm 15.88 mm 87 lbs 195 lbs 285 lbs 21.5 mm 12.5 mm
. Special Alloy 28.0 mm 20.8 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11042 $25.52 and Ferrea Spring Seat Locator (#SL1032 $7.56 (Discard OEM Spring Seat Locator)
TOYOTA FJ CRUISER V6 4L - DOHC 24 VALVE (1GR-FE) - 2006-2008
S10127 $34.99 Double Spring- Special Alloy 20.8 mm 16.51 mm 75 lbs 175 lbs 254 lbs 20 mm 13 mm
Endurance 28.0 mm 20.8 mm @ 35.65 mm @ 25.65 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11100 $25.52 and Ferrea Spring Seat Locator (#SL1110 $7.56 (Discard OEM Spring Seat Locator)
S10132 $25.56 Single Spring- Special Alloy 25.19 mm 18.30 mm 80 lbs 145 lbs 165 lbs 21 mm 13 mm
Endurance . . @ 36 mm @ 26 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11104 $25.52 and OEM Spring Seat Locator
TOYOTA LANDCRUISER 4.5L - DOHC 24 VALVE (1FZFE) - 1993-1997
S10126 $34.99 Double Spring- Special Alloy 20.8 mm 16.51 mm 75 lbs 175 lbs 254 lbs 17 mm 16 mm
Endurance 28.0 mm 20.8 mm @ 33 mm @ 23 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11096 $25.52 and Ferrea Spring Seat Locator (#SL1109. (Discard OEM Factory supplied Spring Seat Locator)
S10131 $21.59 Single Spring- Special Alloy 28 mm 20.8 mm 67 lbs 150 lbs 210 lbs 17 mm 13 mm
. . @ 31 mm @ 21 mm . . .
This Spring requires OEM Steel Retainers and Ferrea Spring Seat Locator (#SL1114 $6.03 (Discard OEM Factory supplied Spring Seat Locator)
TOYOTA SUPRA 3.0L I/L 6 CYL - DOHC 24 VALVE (2JZGE-2JZGTE) - 1994-1998
S10033 $34.99 Dual 20.8 mm 16.51 mm 65lbs 185 lbs 305 lbs 20 mm 14 mm
. Chrome Silicon 28.0 mm 20.8 mm @ 35 mm @ 25 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11011 $25.52 and BOTH, Ferrea Spring Seat Locator (#SL1001 $7.56 and Factory supplied Spring Seat Locator
S10045 $34.99 Dual Spring - Turbo 20.8 mm 15.88 mm 87 lbs 195 lbs 285 lbs 21.5 mm 12.5 mm
. Special Alloy 28.0 mm 20.8 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11037 $25.52 and BOTH, Ferrea Spring Seat Locator (#SL1001 $7.56 and Factory supplied Spring Seat Locator
NOTE: For HIGH PRESSURE use BOTH Ferrea Spring Seat Locator (#SL1001 $7.56 AND #SL1060. (Discard OEM Spring Seat Locator)
. HIGH PRESSURE VALUES SPEC . . 100 lbs 225 lbs 317 lbs 22 mm 10.5 mm
. . @ 34 mm @ 24 mm
S10109 $51.21 Dual Spring - Turbo 20.8 mm 15.88 mm 115 lbs 245 lbs 330 lbs 21.8 mm 11 mm
High Pressure PAC Alloy 28.0 mm 20.8 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11037 $25.52 and TWO Ferrea Spring Seat Locators: #SL1001 $7.56 and #SL1060. (Discard OEM Spring Seat Locator)

Page 99
VALVE SPRINGS
Part# Type
Material
Application		 O.D. I.D. Seat
Press.		 Open
Press.		 Rate
Inch		 Coil
Bind		 Max Net
Lift
TOYOTA SUPRA 3.0L - DOHC 24 VALVE (7MGE-TURBO 7MGTE) - 1986-1992
S10120 $34.99 Dual Spring - Endurance Special Alloy 19.05 mm 13.95 mm 70 lbs 180 lbs 280 lbs 20 mm 13 mm
25.30 mm 19.05 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11095, and Ferrea Spring Seat Locator (#SL1104, (Discard OEM Spring Seat Locator)
TOYOTA GT86 2.0L - DOHC 16 VALVE (4U-GSE) EUROPE - 2012-2015
S10154 $21.59 Single Spring - Endurance Special Alloy 28.0 mm 20.8 mm 60 lbs
@ 34 mm		 135 lbs
@ 24 mm		 190 lbs 18.6 mm 14.5 mm
. . . . .
This Spring requires Ferrea Tool Steel Retainer #E20055, and Ferrea Spring Seat Locator #SL1139. (Discard OEM Factory Spring Seat Locator).
S10155 $34.99 Dual Spring - Turbo Special Alloy 20.8 mm 16.51 mm 70 lbs 170 lbs 254 lbs 18.6 mm 14.5 mm
28.0 mm 20.8 mm @ 34 mm @ 24 mm . . .
This Spring requires Ferrea Titanium Retainer #E11127, and Ferrea Spring Seat Locator #SL1140. (Discard OEM Factory Spring Seat Locator).
VW 1.8T - DOHC 20 VALVE - 1998-2005 Volkswagen
S10055 $25.56 Single Spring - Turbo Special Alloy
(Intake - 12 pieces)		 21.5 mm 15.1 mm 65 lbs 145 lbs 216 lbs 22.5 mm 11 mm
. . @ 34.5 mm @ 24.5 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11031, and Ferrea Spring Seat Locator (#SL1025,. (Discard OEM Spring Seat Locator)
S10056 $38.95 Dual Spring - Turbo 22.75 mm 17.1 mm 80 lbs @ 32.5 mm 180 lbs 254 lbs 20 mm 12 mm
Special Alloy (Exhaust - 8 pieces) 29.5 mm 22.75 mm @ 22.5 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11032 $28.20 and Ferrea Spring Seat Locator (#SL1026,. (Discard OEM Spring Seat Locator)
VW BEETLE/GOLF/JETTA/RABBIT 2.5L - DOHC 20 VALVE (BTW) - 2005 1/2 - 2009 .
S10162 $25.56 Single Spring - 22.38 mm 15.52 mm 80 lbs 180 lbs 254 lbs 24.6 mm 11 mm
PAC Enhanced Alloy Endurance Application . . @ 37 mm @ 27 mm . . .
This Spring requires Ferrea Ferrea Titanium Retainer (#E11134, and Ferrea Spring Seat Locator (#SL1145.
(Discard OEM factory supplied Spring Seat Locator) NOTE: Max Net Lift is limited due to the OEM factory valve seal install height.
VW GOLF / JETTA 1.8 L - DOHC 16 VALVE (PL) - 1987-1989
VW SCIROCCO 1.8 L - DOHC 16 VALVE (PL) - 1986-1988 . . . .
S10115 $38.95 Dual Spring 22.75 mm 17.1 mm 85 lbs 205 lbs 304 lbs 17.5 mm 14 mm
Special Alloy Endurance Application 29.5 mm 22.75 mm @ 33 mm @ 23 mm . . .
. . . . . . . .
This Spring requires Ferrea Titanium Retainer (#E11084, and Ferrea Seat Locator #SL1073, (Discard OEM Spring Seat Locator) .
. . . . . . . . .
VW GOLF / JETTA 1.8 L - DOHC 16 VALVE (9A) - 1990-1992
VW PASSAT 2.0 L - DOHC 16 VALVE (9A) - 1990-1994
S10115 $38.95 Dual Spring 22.75 mm 17.1 mm 85 lbs 205 lbs 304 lbs 17.5 mm 14 mm
Special Alloy Endurance Application 29.5 mm 22.75 mm @ 33 mm @ 23 mm . . .
. . . . . . .
This Spring requires Ferrea Titanium Retainer (#E11084, and Ferrea Seat Locator #SL1073, (Discard OEM Spring Seat Locator)
VW VR6 2.8L - DOHC 12 VALVE - 1992-2002
S10062 $38.95 Dual Spring - Turbo Special Alloy 22.75 mm 17.1 mm 95 lbs 195 lbs 254 lbs 19 mm 13 mm
29.5 mm 22.75 mm @ 32 mm @ 22 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11039.
VW VR6 2.8L - DOHC 24 VALVE (BDF) - 2002-2004
S10087 $25.56 Single Spring 23.5 mm 15.7 mm 85 lbs 190 lbs 265 lbs 26 mm 12 mm
Special Alloy . . @ 39 mm @ 29 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11063.
VW VR6 3.2L - DOHC 24 VALVE - 2004-2011
S10148 $34.99 Dual Spring - Endurance Special Alloy 18.23 mm 13.4 mm 75 lbs 180 lbs 266 lbs 24.3 mm 12 mm
25.19 mm 18.23 mm @ 37.5 mm @ 27.5 mm . . .
This Spring requires Ferrea Titanium Retainer (#E11122, and BOTH Ferrea Spring Seat Locators (#SL1131 $7.56 & SL1132.
VW 2.0T TSI - DOHC 16 VALVE - 2009-2013
VW GOLF R 2.0T TSI - DOHC 16 VALVE - 2015-2016
S10157 $25.56 Single Spring - Turbo PAC Enhanced Alloy 22.38 mm 15.52 mm . . . . .
. INTAKE Assembly 80 lbs @ 37 mm 180 lbs @ 27 mm 254 lbs 24.6 mm 11 mm
. EXHAUST Assembly 85 lbs @ 36.5 mm 185 lbs @ 26.5 mm 254 lbs 24.6 mm 10.5 mm
This Spring requires Ferrea titanium Retainer (INTAKE) (#E11139, and (EXHAUST) (#E11140, and Ferrea Spring Seat Locator #SL1142,. (Discard OEM Spring Seat Locator)

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