SI Harley Davidson Performance Stainless Steel
Swirl Polished Valves
Black Nitride Coated

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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Engine Rebuild Kit and Parts Online Catalog

Engine Rebuild & Assembly Balancing & Blueprinting Cylinder Heads About the owner of RPM
Engine Rebuild Kits Engine Start-up Other Related Web Sites Page 1 Frequently Asked Questions
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SI Harley Davidson Motorcycles Valves

HARLEY DAVIDSON MOTORCYLES

SWIRL POLISHED WITH BLACK NITRIDE

DESCRIPTION YEAR HEAD SIZE PART NUMBER  Your Cost
ea. $
EX Sportster 1970-Up 1-9/16 18080-58AXN 12.32 
EX Sportster 1970-Up 1-5/8 18080-60RXN 12.32 
EX Sportster 1970-Up 1-3/4 18080-70RXN 12.32 
IN Sportster 1970-Up 1-15/16 18070-70XN 12.32 
EX Sportster 1958-69 1-9/16 18080-58AXN 12.32 
IN Sportster 1958-69 1-13/16 18070-58XN 12.32 
EX Shovel Head 1966-Up 1-3/4 18082-57XN 12.32 
IN Shovel Head (Oversized)   2.000 18074-66XN 12.32 
EX Pan Head 1948-65 1-3/4 18082-57XN 12.32 
IN Pan Head 1948-65 1.750 18071-48XN 12.32 
EX Evolution* 1983-Up 1.615 18082-83XN 12.32 
(also fits new Indian)        
IN Evolution* 1983-Up 1.850 18074-83XN 12.32 
(also fits new Indian)        
IN Evolution 1983-Up 1.940 HD-113-XN 13.87 
EX Knuckle Head 1937-48 1-3/4 18071-36XN 12.32 
EX Evolution   1.700 HD-126-XN 13.87 
IN Evolution   1.940 Tulip HD-127-XN 13.87 

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