tryin to find out cam bank 45 0r 39 on my 425?
tryin to put heads off 425 on 1974 455?[*]425

 

http://www.realoldspower.com/phpBB2/...r=asc&start=15

read the post for the above link, the entry by thumpin455. I believe this is what you were looking for. Apparently there is even still some disagreement at least within the context of that particular application. If there is a difference, you can probably radius the pushrod holes to make them fit.

[ February 08, 2005: Message edited by: Oldsguy ]</p>