S&S CYCLE Big Bore Forged Piston Kit - 107" Twin Cam - Standard 920-0100

Big Bore Forged Piston Kit - 107" Twin Cam - Standard Pistons are compatible with stock rods with tapered wristpin ends, Stock cylinders may be bored to accommodate larger piston, Bore cylinders to nominal diameter +/- 0.0005" for correct clearance