96" 3 5/8" Sidewinder® Big Bore Cylinder and Piston Kit for 1984-'99 Big Twins with Stock Cylinder Heads -Wrinkle Black FinishThis 3 5 8" big bore kit may be used to replace the cylinders and pistons of an engine that has been upgraded with an S&S 96" Hot Set Up Kit with stock cylinder heads. This kit may also be used to upgrade an engine with an S&S 89" stock bore stroker kit to 96". Stock crankcases must be bored to accomodate the 3 5 8" bore cylinders, but the 4 5 8" stroker flywheel assembly does not need to be rebalanced. The kit includes S&S 3 5 8" bore cylinders, 3 5