Needing Early Hemi Help

[rcc]

I'm in the process of a total "Upper End" rebuild on my 1966 Dodge Hemi Charger. It still retains its original 426/425 Elephant engine.

Question: Although the factory, stock pushrods look decent, I am contemplating replacing them. Before I go any further, could one of the forum members please describe for me what are the "factory standard pushrods"--diameter, lengths , etc for both the intake and exhaust valves.

Question: Is there anything on the market that is better than the stock pushrods, recalling that I'm keeping everything pretty much "standard"? The cam and crank are unchanged. I did install new valves, valve guides, springs and rocker arm assemblies but all to OEM standards and I did "hardened" the valve seats.

Last Question: When all is put back together, what are the correct intake and exhaust valve lashings?

Many Thanks,

Rick