Cylinder and piston kit can be used to build an 88" engine, or to replace the cylinders and piston in an engine with an existing S&S stock bore stroker kit. Includes 3-5/8" bore high tensile cast iron cylinders, forged pistons with rings and wristpins, head gaskets, stainless steel head bolts with washers, base nuts and base gaskets. 88", 7.5:1 compression. Can be used in engines with 4-1/4" flywheels. Made in the U.S.A.. Crankcases must be bored to accept the larger 3-5/8" cylinders and stock flywheel assembly should be rebalanced..