Solid Roller Lifters for A Engine

PMs sent.

I assembled my 318 SS engine and the full set of rollers that I
had were Shorter than I have had before, and did not think
it would matter.
However when I tried to put pushrods in, they hit on the top of the heads
where they mated to intake. The pushrod holes are huge in my heads and if
I clearance the top of head to fit the pushrods it would go entire through the top
of the head. I had to make a 8 inch set of pushrods for these rockers and the old
rollers only required about 7.3 something.