If you get the pistons made, consider calling Totalseal Piston rings regarding a recommendation by them on the rings before ordering the pistons. Do the research up front. Narrower modern rings create lower friction and wear. When ordering the pistons you will need to be able to tell them the rings you are going to use, the ring width and the required ring groove depth. Then you may be able to get the ring grooves hard anodized for durability and an anti wear skirt coating.