I was recently given a pair of 56(ECZ-C)heads that have been redone with new guides and hardened seats.The seats have been given a 3 angle grinding.I have a new set of stock 56 292 valves.Will they work OK in these heads or do I need to have the valves ground to match the seats?

2nd question.I have two camshafts and lifter sets and am wondering if there is any difference between them.One  is out of a stock original 56 292(Fordomatic tranny)and is marked ECK.The other is out of an engine that was a short block installed in a truck about 20 years ago.The block is a 57 292 casting.The only thing marked on the cam is CAF directly behind the front bearing and the number 34 between the 3rd and 4th lobes.Side by side eyeballing them,the cams look the same,but the one out of the truck engine has a slightly higher lift,I believe.

 

Paul,

Boonville,MO