Features: 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. Works with 4-3/8" stroke flywheels to convert 96" or 103" to 107" displacement with 10.4:1 compression with stock heads. Deck height is 1.085"..