PISTONS 3.937"STD 99-06TC

Big Bore Forged Piston Kit

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

For use on '99-'06 Twin Cam models with S&S 98" big bore kits. Works with 4" stroke flywheels to convert 88" to 98" displacement with 10.3:1 compression with stock heads. Deck height is 1.265".