Re: Best Headers for LS swap and stock frame
I've used the Corvette manifolds for other conversion projects - don't think they were ZO6 though. Believe the ZO6 have some sort of bifurcated exhaust port, but the earlier ones from the LS1 have a conventional exhaust dump flange welded to the manifold.
They are stamped stainless steel and double wall, but the exhaust flange can be cut off and a new one welded on to get the dump where you want it. I used a vband flange on the one I did
Overall the Corvette manifold is a pretty good solution with some flexibility where you put the dump
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