S&S CYCLE 3-7/16" Bore Cylinder and Stroker Piston Kit Big Twin

Cylinder and piston kit can be used to build 84", 86" or 88" stroker engines, or to replace the cylinders and piston in an engine with an existing S&S® stock bore stroker kit. Can be used in engines with 4-1/2", 4-5/8" or 4-3/4" stroke flywheels. 4-1/2" Stroke - 84" - 8.4:1 Compression 4-5/8", Stroke - 86" - 9.4:1 Compression 4-3/4", Stroke - 88" - 10.8:1 Compression. Includes 3.4375" bore high tensile cast iron cylinders, 3.4375" bore forged pistons with rings and wristpins, head gaskets, S&S stainless steel head bolts with washers, base nuts and base gaskets. Made in the U.S.A.