Wanted SBC 4.155 or 4.165 pistons

[governor]

If your block is a stock 400 block, make sure your shop sonic test the walls, 4.165 could leave you with some cyl walls that may be on the thin side. This will compromise ring seal when the holes are no longer round, plus it will be more prone to overheating. I for sure would not want to use spray if a stk block.

Just trying to help you avoid issues latter on.

Gov

[racinnut15xm]

Its a little M thanks for the heads up though. No spray either, its going in a roundy round deal.