Originally Posted By GTX MATT
Originally Posted By fast68plymouth
To Russ's point, I don't know if correct height 1968/69 hp 383 pistons were ever available.
I've never taken apart an original 68/69 hp 383....... Did those motors actually have positive deck height pistons as delivered from the factory?


No, they were like .020 down


No , they are down .0025 -.003 at blueprint , positive .020 is the NHRA spec.

Factory piston CH of the 68-69 383 is 1.932

running up my post count some more .