That piston has a lower deck height and will drop the CR a bit...1.395 VS 1.418 comp height. .023" is a pretty big change and will drop the CR about 1/2 a point.

Unless you mill the head a bunch.... like .023"

Kevin C


87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...