Maximum Performance N/A 383 build. Input wanted from engine gurus.

TRW pistons require a ridiculous amount of clearance due to the expansion rate and are boat anchors in weight compared to modern piston offerings.

Modern pistons allow for much tighter clearances and will provide a better ring package.

If you want a 13 to 1 engine in that cubic inch size you're going to need a custom set of pistons that will run in the $2000 range to get a dome large enough.

Also I would plan on using a girdle and buy an all aftermarket rotating assembly if you plan to spin it 7500 RPMs all the time.

Tom