I need some advice, I have just installed one replacement cylinder head on my 1974 Chevy truck with a 350 engine. During the installation I noticed that the push rod guides in the cylinder head are round rather than the other sides sloted. The holes are much larger than the push rods. Will this work? I am afraid it is going to cause all kinds of noise once running. Are there different pushrods for this head? I don't see how even a different push rod will work because the holes are completely round. I don't recall ever seeing a small block chevy head with these round holes as push rod guides. The head I have does not have screw in studs.
thanks in advance