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Wondering if anyone has installed a post 1976 351W 12-mounting-hole intake manifold on a pre 1977 351W engien that has 16-mounting-hole intake manifolds. Seems no one makes a polished or chrome intake manifold for the '76 and earlier Ford 351 Windsor.
I run 69 351 W heads on my 302 the threaded hole is in the heads no bolt hole in the intake. That would be the same as a new 351 intake on old heads. Issue would be putting an old intake with the existing extra 4 holes on a new engine. Fix would be to plug the unused bolt holes.
I put a '69 manifold on newer heads. The extra holes didn't matter, but I threaded them and put allen head set screws in just for looks.
Thanks for the help. We are putting the manifold on, using the gaskets made for the 16-hole manifold.