cylinder head id

Any head made after the 516 is a better head, except for the 250, which is in my opinion a 516 with a big combustion chamber. But, if all you have is the 516, you go with what you have. Now days I too throw them on the scrap pile.

Except for this one time............

Post #44 is what happened when we switched from stock 906 to ported 516 heads. Included in the same post are the flow figures for those ported 516 heads.

http://www.forabodiesonly.com/mopar/showthread.php?t=249866&highlight=1972+440&page=2