X2 on the surface advice if cometics- will not hurt with felpro consider the .028 gaskets if it save some milling I'd run .030 total quench depending if tight fitting piston with some skirt else .035 for looser forged piston .040 max I had a big chamfer- ended up with the pistons out .015 and ran a .050+ marine gasket (Victor or McCord I forget) did have a stainless center 915 heads - D Dish milled in 6 pack pistons- old school
