Originally Posted by cudaman1969
Originally Posted by markz528
Originally Posted by cudaman1969
Originally Posted by Cab_Burge
The ductile iron adjustable rocker arms are wider so the hold downs need to be narrower, Mopar added small bosses, ears, on both sides at the top for the stamp steel rocker stands, they can be used by removing, them wrench no big deal scope up

I’ll be using the iron rockers, I can see what you’re saying about that edge part. If I could run across a set of 67 heads (915) with small exhaust I won’t need to do the 516 heads. I want to keep the closed chamber.


You know that newer 516 heads also have the cast in rocker holders and have the closed chamber? If you are ok with 516 why not just go with a newer 516?

Yes could do that, I looked at a 64 413 that had those ($500 no intake) but I went with the 413 industrial block with no heads because of the block. It’s just that I have the 63 set on hand.


I was in your backyard on Friday. I could of brought you a set of newer 516's.

67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......