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I have a 73 dart that i putting a 383 in and am wondering if anyone has made any other exhaust manifolds work other than a body ones that today cost as much as a house to by. I have looked at some hi-po c-body manifolds and they look like they would be really close to working. I figure if i...

Thanks chuck, I can't anything to support that these are hp manifolds.

I found a set of exhaust manifold's with casting #'s 4041472-2 and 4041457-2 but can't find what they are off of. The seller says these are hp manifolds off of a 440, but i don't think hp manifolds have air injection provisions. Any help would be great. Mike 73 dart swinger 97 ram 2500 cummins