S&S Cycle 3-5/8" Big Bore Cylinder and Piston Kit 91-9001 for Harley Engines HARDDRIVE One billet air cleaner cover

One billet air cleaner cover

ensuring clear visibility in various conditions

lightweight strength

Lite Force Carbon Matrix shell handcrafted with 12K chopped carbon fibers for strength and lightweight performance

S&S Cycle 3-5/8" Big Bore Cylinder and Piston Kit 91-9001 for Harley Engines HARDDRIVE One billet air cleaner coverEnhance your Harley Davidson engine with the S&S Cycle 3 5 8" Big Bore Cylinder and Piston Kit, part number 91 9001. Designed for building an 88 inch engine or replacing cylinders and pistons in existing engines with an S&S stock bore stroker kit, this kit offers reliable performance and durability. The kit includes three high tensile cast iron cylinders with a 3 5 8" bore, forged pistons complete with rings and wrist pins, along with essential