I was starting up a 36EL that has been silent since the early 1950s, after a complete resto on the motor, the original front head had the common front head exaust port cracking, so back in 1996 I bought a set of the early FHP repop heads, had a shop put them together, they have set for 15 years while I worked on chasis and bottom end, and raised 2 kids, now I am back on this project, and the motor fired right up
, ran it a few short times (not on the road) just testing in shop, cracks started showing up in the top of rocker boxes
the rockers were hitting the boxes inside and cracked them, had a shop tell me the valve protrusion must not be correct, from bottom spring seat to top of valve is 1.5" I am told that is correct, why then are the rockers hitting the boxes ? stock lighting cam, stock pushrods, the pushrod ajusters are ajusted way up, like 3/4 of a inch up, that was the first odd thing that was noticed.
Any input would be appreciated.