Hi all,
Hoping you can help with this one please. I have pulled down a 308 I recently purchased. I've noticed marks on the block around the top of the holes the lifters sit in. Only on one side of the block. It might be historical damage, I'm not sure. I was thinking it might be from weak valve springs and he push rods jumping off the lifter. Any thoughts, as I was thinking of re-using the heads that came off the motor.