Ok guys i am rebuilding a 604 cid indy aluminum hemi it has a 0.770 lift roller cam, now what i done last night was to adjust the roller rockers to spec's, I rolled one of the cam lobe's to full lift then i took a Chevy rocker ball and dropped it in the intake port of the head, it would not go thru, Now i don't think the engine in question has a camshaft this large it might though, I think that if it would not go thru it would just sit on the valve and bounce untill the valve broke from the vibration of ball bouncing. The ball was close to the valve opening but would not go thru. Soooo i don't know :!: :!:
''JUST MY TWO CENT'S WORTH''