Torque specs for exhaust manifold bolts on Champion GN1 aluminum heads

[GNandTTA]

Looking for the torque amount and procedure for exhaust manifold bolts on Champion GN1 aluminum heads. Did a search on here and general Google search and did not find anything.

 

[GNandTTA]

Called Champion. 12 - 15 ft lbs if using factory bolts. Check and retighten after engine is warmed up a few times.

 

[BEATAV8]

Studs are highly recommended over bolts.
ARP black oxide with 12pt nuts. For the extra long variants you can use set screws from fastenal.