106" Hot Set Up® Engine Performance Kit

Increased fin area for better heat dissipationIncrease bore size from 3.750" to 3.927"4 3/8" stroke, 10:1 compression with stock headsEasy installation; no machining or rebalancing requiredForged coated pistons are compatible with stock or S&S Super Stock 79cc and 89cc headsValve pocket recessed in S&S pistons are enlarged for oversize valves and higher lift cams11 fins and full fin pattern on cam side of cylinders closely resembles OEM shapeKit includes; S&S cylinders with gaskets, piston set with rings, top end gasket kit, pushrods, tappets, 585CE chain-drive easy start cams and instructionsA fuel system is not includedMade in the U.S.A.