1mm STUFFER Stroker Crank

Built in stuffer reduces crankcase volume, increasing primary compression and air velocity through the crankcase. Must use with thicker base gasket or head kit.

Fits:

All G23LH, G230RC, G260rc, G290RC, G290RS

Notes:
May require modifications to the piston for proper journal clearance on the piston skirt. May also require additional base gaskets for proper squish clearance when using with a stock cylinder. LH engines may also require replacing crank bearings with RC ones.