I.D. 340 parts

70aarcuda said

428P-040 ...is a .040 piston ...sealed power cast 10.1 compression

http://www.campbellenterprises.com/mopar_sealed_power_cast_pistons.htm

Click to expand...

Thanks for the info.10-1 compression sounds pretty healthy so hopefully I can keep those pistons and just re-ring them.None of them were labeled which cylinder they came from so I probably don't want to use the old rings again.