[slowbird]

Originally Posted by Dragncar

Because there is a slight difference between the shaft rocker setups but they are still close enough to center on top of the valve stem to work.
At least that is how i understand it.
But with a stud, there is not room for any misalignment, has to be exact.

I disagree. The shaft rockers bar mounts to the stud holes and it mounts just fine. I have swapped shaft rockers from hp to eheads multiple times without issue. But maybe there is something I'm missing with the girdle.

[Dragncar]

Originally Posted by slowbird

I disagree. The shaft rockers bar mounts to the stud holes and it mounts just fine. I have swapped shaft rockers from hp to eheads multiple times without issue. But maybe there is something I'm missing with the girdle.

Maybe you are right.
Could the stud/bolt holes in the 2 heads be the same but the valves in the heads are moved some ?

[Dave Polichena]

Originally Posted by Dragncar

Maybe you are right.
Could the stud/bolt holes in the 2 heads be the same but the valves in the heads are moved some ?

This is correct, the stud girdle will work for either head.