Engine

Precision-machined and heat-treated bodies Premium-quality anti-pump-up hydraulic inserts Eliminate noise from the mechanical valve train Made in the U.S.A.. LIFTERS +.003 53-84

Machined from 4140 forged steel and heat treated for maximum strength Feature the exclusive .750" long S&S rocker arm bushing which provides 50% more load bearing surface than stock .500" bushings Can be oiled through pushrods when used with S&S...

Forged from 8620 steel, heat-treated then shot-peened for additional strength and durability Rocker arms have .75" long bushings instead of the .50" long bushings found on most other rocker arms Feature a modified lubrication system with unrestricted...

HVHP oil pumps have a new gear tooth profile with fewer but larger teeth that provides an increased oil volume for both supply and return-side of the pump Supply-side gears are 9% wider than stock Return gears are 28% wider than stock to ensure that the...

Piston kit includes set of pistons, rings, wristpins, and clip Compression ratios listed are approximate and are calculated using the correct length cylinders as specified by S&S. PISTONS 131" +.010 M8

Piston kit includes set of pistons, rings, wristpins, and clip Compression ratios listed are approximate and are calculated using the correct length cylinders as specified by S&S. PISTON KIT 124" 1.143+010

A four-gear set is required for gear-driven cams that do not come with secondary cam gears; includes two secondary cam gears, outer cam drive gear, outer pinion drive gear and mounting hardware Due to the inherent characteristics of gear drives, you may...

Piston kit includes set of pistons, rings, wristpins, and clip Compression ratios listed are approximate and are calculated using the correct length cylinders as specified by S&S. PISTONS 128" +.010 M8

Forged from 8620 steel, heat-treated then shot-peened for additional strength and durability Rocker arms have .75" long bushings instead of the .50" long bushings found on most other rocker arms Feature a modified lubrication system with unrestricted...

Piston kit includes set of forged pistons, rings, wristpins, and clips for a complete motor Will fit up to a 4-5/8" stroke Made in the U.S.A.. PISTONS 111/117/124 .010

Piston kit includes set of forged pistons, rings, wristpins, and clips for a complete motor Will fit up to a 4-5/8" stroke Made in the U.S.A.. PISTONS 111/117/124 STD

Kit includes an oil pump with cover, mounting bolts, supply and return gears, drive shaft with keys and snap rings, check ball and spring, pressure relief valve and spring, check ball and release valve cover screws with O-rings, miscellaneous hose...