Originally Posted By Cab_Burge

Me thinks your source got it wrong on the year of the positive deck height pistons on the 383 Magnum motor, I'll swear it was only the 1970 383 magnum motors that had the Holley carbs also that where listed by Chrysler to NHRA tech. department with + .005 deck height, just like the 390 HP 440 6 pack motors where scope


I think the 440 6 bbl blueprint was -0.001".