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WHAT DIAMETER are those pushrods?
I've seen BBC that came with 5/16" pushrods. GM must have been insane to do that. Most have 3/8" pushrods, and the high-performance engines used 7/16.
Bent push rods are never fine.You must be registered for see images attachYou must be registered for see images attach
This is fine.
You are correct. Those are not vortec heads, and I think 99-00 had the larger push rods. Mine does.The first couple of years of the Vortec 454 used the smaller pushrods, but those aren't Vortec heads in the picture.