Small Block Chevy Portflow Stainless Series Valves
stainless steel swirl polished performance valves Small Block Chevy
RPM - RON'S PRECISION MACHINE, INC.
69 E. 580 N.
Santaquin, Utah 84655
1-801-754-5338 or Toll free 1-866-700-5877
e-mail

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Chevrolet Small Block Portflow Series Stainless Valves

These valves are ideal for both competition and street applications. They are similar in material and design to competition valves, but manufactured in large production runs for all of the most popular applications. Because of the fully automated (robotic) production, SEV-series valves are priced lower than racing models, yet feature the same premium quality stainless steel forgings, Chrome stems, stellite tips, and swirl-polishing. If you do not see a valve you need in the Competition or Silverline Series, use the Portflow, as they are suitable for these applications.

Call toll free to order at 1-866-700-5877 or e-mail or use the Order Form for questions and to check stock.


Low Cost Swirl Polished One Piece Stainless Performance Valves for Street, Track or Quality Restorations, IMCA, Bracket Cars, Boats, Etc.

Small Block Chevy APPLICATIONS

DESCRIPTION LENGTH PART NUMBER  Price $
each
 (11/32 Stem)      
1.720 S.B. Chevy Intake (.100 Long) 4.98 SEV-2091+100 8.60
1.720 S.B. Chevy Intake 4.88 SEV-2091-C 7.52 
1.720 S.B. Chevy Intake (1 Groove) 4.88 SEV-2091-SG  8.73
1.600 S.B. Chevy Exhaust Valve 4.88 SEV-2469-C 7.21 
1.600 S.B. Chevy Exhaust (No Chrome) 4.88 E-2469-HP 6.03 
1.600 S.B. Chevy Exhaust Undercut +100 4.98 SEV-2469+100 10.76 
1.600 S.B. Chevy Exhaust 1 Groove 4.88 SEV-2469-SG 7.36 
2.020 S.B. Chevy Intake Valve 4.88 SEV-2470-C 9.28 
2.020 S.B. Chevy Intake Valve 4.88 SEV-2470-E 7.42 
2.020 S.B. Chevy Intake (No Chrome) 4.88 I-2470-HP 6.15 
2.020 S.B. Chevy Intake Undercut +100 4.98 SEV-2470+100 10.08 
2.020 S.B. Chevy Int. 1 Groove 4.88 SEV-2470-SG 7.98 
1.940 S.B. Chevy Intake Valve 4.88 SEV-2552 6.12 
1.940 S.B. Chevy Intake Valve 4.88 SEV-2552-C 7.55 
1.940 S.B. Chevy Intake Valve 4.88 SEV-2552-E 7.27 
1.940 S.B. Chevy Intake 1 Groove 4.88 SEV-2552-SG 9.07 
1.940 S.B. Chevy Intake Undercut +100 4.98 SEV-2552+100 7.67 
1.500 S.B. Chevy Exhaust 4.88 SEV-2809 6.51 
1.500 S.B. Chevy Exhaust (.100 Long) 4.98 SEV-2809+100 8.53 
1.500 Chevy Exhaust Valve 4.88 SEV-2809-C 7.16 
1.500 S.B. Chevy Exhaust 1 Groove 4.88 SEV-2809-SG 8.53 
1.840 S.B. Chevy Intake Valve 4.88 SEV-3091 7.08 
1.840 S.B. Chevy Intake 1 Groove 4.9 SEV-3091-SG 8.04 
1.840 S.B. Chevy Intake (.100 Long) 5.01 SEV-3091SG+100 11.92 
1.840 S.B. Chevy Intake (.100 Long) 5.013 SEV-3091+100 9.28 
1.840 S.B. Chevy Intake Valve 4.912 SEV-3091-C 7.77 
2.080 S.B. Chevy Intake Valve 4.95 SEV-3122-E 10.62 
2.080 S.B. Chevy Intake (.100 Long) 5.05 SEV-3122+100 10.83 
2.080 S.B. Chevy Intake Undercut 4.95 SEV-3122-PF 9.58 
1.625 S.B. Chevy Exhaust Tulip 4.96 SEV-11557 9.08 
1.625 S.B. Chevy Exhaust +100 5.01 SEV-11557-PF+ 12.28 
2.055 S.B. Chevy Intake Valve 4.9 SEV-11598 12.28
2.055 S.B. Chevy Intake (.100 Long) 5 SEV-11598+100 12.28 
1.625 S.B. Chevy Exhaust (.200 Long) 5.11 SEV-11557+200 11.36 

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