What kind of headers are these?
 

I just got a new 92 z28, I knew it had an exhaust leak when I bought. I after I got the manifold off I noticed the headers had circular holes, the gaskets had square holes, and the manifold had oval holes. Some idiot must have put those headers/gaskets on before I got the car. Anyway I'm trying to figure out what type of headers these are. They're long tube and I think 1 5/8". I'll try and get pics posted as soon as I can.

Re: What kind of headers are these?
 

If its a long tube and 1 5/8" that would most likely be a hedman. Check the head flange for part number. The hedman will be a 68468 I believe. Hooker will have 2210-hkr stamped on the head flange toward the right end tube.

Re: What kind of headers are these?
 

68460 for Hedman long tubes.