273 Commando Piston Reuse - L2222N /.040

The old forged pistons from TRW required a pretty good amount of clearance. I think on the order of .004"-.006". Seen as high as .008" and RUN as high as .012". LMAO But that joker didnt burn a lick of oil because I file fit the rings. It was noisy when cold but got better when warm. Those old forgings are heavy and TOUGH. They can get by with some clearance.