11-9972 - 103 Twin Cam Wiseco Piston Kit

Big Bore Wiseco reverse domed piston kit for use with standard 3.875 inch bore cylinders with 9:1 compression. Kit includes forged pistons rings circlips chrome piston pins and gaskets. Kit includes Armor X coated pistons. **Note: Run engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly break-in new pistons and rings. Requires cylinder boring.