S&S Cycle 3-5/8" Big Bore Cylinder and Piston Kit 91-9001 for Harley Engines HARDDRIVE Aero Skirt to improve airflow

Aero Skirt to improve airflow and reduce turbulence

Each floating rotor is constructed from 420 stainless steel

lightweight strength

providing seamless control in various riding conditions

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 Aero Skirt to improve airflowEnhance 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