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Can anyone suggest the torque for reassembling headers to iron heads and the best tightening sequence for my 1970 454?
Is it recommended to fit gasket dry or use a gasket compound?
If you have aluminum heads use a tiny bit of anti seize on the threads
Gaskets dry
Not aware of any sequence, I usually get them threaded, snug to about 20 lbs then give ea one a little more. Not super tight
Iron heads....that may be bad advice.
I retighten mine (from new gasket install) EVERY heat/cool cycle- for about a week then back off to every couple of weeks. And the wrench I use is pretty long.
I would contact the header manufacturer and ask them for the torque value,
The newer Sanderson Headers require no gaskets.
Hedman and Hooker each suggest different gaskets on their websites.