This crankshaft is machined from a solid bar of Chromoly steel and will give you .175" more stroke than the stock crankshaft with far superior strength. You will need at minimum, our connecting rod #6265 and a Wiseco 10813P2(includes circlips,wrist pin and rings) or larger piston to run this crank. The crank is properly balanced when run with these parts. Other modifications to the engine are up to you.
*The stock bore will need to be honed approximately .004" to fit the piston that goes with this crank. Also, this piston has a thick dome which is designed to be cut down to your engine's deck height. You must cut down the top of the piston by test-installing the parts and measuring to see how much needs to be taken off.
*ALL of the compression release components (including the rivets) on the cam must be removed for clearance purposes, but otherwise, the rod and crank are pre-clearanced for this cam. This means that an electric starter will likely be necessary.