I don't understand what I am doing wrong when measuring the pushrod length on this motor. It's a 1997 block, stock lifters, mild cam, crane cams gold 1.5 rockers, unmilled heads/deck, .016" compressed head gaskets.
In order for the pushrod to contact the bottom of the rocker with a hair of drag, the pushrod needs to be set at 7.55"... anything less and the pushrod isn't contacting the rocker throughout the cycle. Naturally without any pushrod, the rocker is sitting too far forward on the intake valve.
I've only been pulling measurements of cylinder 1's intake valve. Is it possible when the machine shop drilled for screw in studs that he didn't drill them strait?
This was set at 7.40", the pushrod was so loose that it barely sat in the rocker's pushrod cup.
No pushrod:
A little easier to see the top of the valve:
Any ideas?