I just removed the intake manifold and valve covers so I can look for a casting number to find out if there heads are open or closed chamber. And this is what I find... The motor is a 351c 4 bolt main with 4V heads.
Everything else looks fine except for this. Are these heads still usuable/fixable? What could cause this?
Everything else looks fine except for this. Are these heads still usuable/fixable? What could cause this?