4.375" stroke, 10.0:1 compression with stock heads
Easy installation; no machining or rebalancing required
Forged coated pistons are compatible with stock or S&S Super Stock 79cc and 89cc heads
Valve pocket recessed in S&S pistons are enlarged for oversize valves and higher lift cams
11 fins and full fin pattern on cam side of cylinders closely resembles OEM shape
Kit includes; S&S cylinders with gaskets, piston set with rings, top end gasket kit, pushrods, tappets, 585CE chain-drive easy start cams and instructions
A fuel system is not included
Made in the USA
Notes
EFI system must be recalibrated.
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