Charlie69 Posted September 28, 2010 Report Share Posted September 28, 2010 I have a U67 square exhaust port head & a round port exhaust manifold. Is it possible to run these 2 together and have a good seal, without having exhaust leaks? Quote Link to comment
zerow Posted September 28, 2010 Report Share Posted September 28, 2010 No. I have always found that you can run a square port manifold on a round port head (like the W58), but not the other way around. The square ports cannot effectivly exhaust into areas that are part of the casting of the manifold. Quote Link to comment
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