Yeah…we went with aluminum pistons as well. However we did opt for re-babbiting the rods. Had the crank turned down also. And bored the cylinders to .040. New mains, new valve seats and valve guides. Should run like new….I hope

I am curious if a certain type of break-in oil is required for these engines after getting this type of work done. Anyone have any suggestions?

Thanks

Last edited by stove51; 11/29/2013 5:04 PM.