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Idahome
Joined: Wed May 2nd, 2018
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You CANNOT slam things together
In fact you need to treat the top of the engine like as if you were a surgeon doing open heart surgery. CLEAN CLEAN CLEAN is the key and you must be super careful.
You must change the oil as coolant gets into the crankcase
They should be mostly centered yes, however there is no pushrod "guide" so to speak
Only the pressure from the valve springs and the lifter keep the rocker tips centered on top of the lifter and in the cup of the rocker tip
I have been doing this many many years on these engines, I do not like replacing heads, in fact many times I will just swap the whole damn engine (its less work and can be less expensive)
Too many times with head gaskets/heads you run into these issues which is WHY you must go slowly and do everything so carefully.......
Let us know what you find!!
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I build custom RBV, specializing in drivetrain conversions, wiring, suspension and complete custom trucks