98" BIG BORE FORGED PISTONS 3.937" STANDARD BORE

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".