What headers will fit???

if the engine is out...you can install them with the engine...just tie them back out of the way....and as the engine is is finally set in place you can wiggle them on
So you have to have engine jacked up to put them in or the engine can be completely bolted in then put headers on. Meaning a running driving car unbolt manifolds and bolt on headers without pulling engine mount bolts and lifting engine. I'm waiting on my headers but want to bolt my engine