Description
s s 100 big bore kit for harley twin cam 3OM 5 pack Allen Bolt Chrome 1 4 20 Size:Thread M8 5 pack Allen Bolt Chrome 1 4 20 by Gardner Westcott Vibration and heat resistant and a very low self discharge rate 88" engines are boosted to 100" The biggest cylinder bore that can be installed in a stock crankcase without machining