I recently bought an Offenhauser 2x4 intake manifold with waterneck. I bought it as a '65 up style, imagine my surprise when I opened the box. This has the round ports for the exhaust crossover - can someone tell me exactly what years it fits? I don't need it so I can let it go for $150 plus shipping.

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Check out my homepage at http://barney.wcupa.edu/~badgoat

I recently bought an Offenhauser 2x4 intake manifold with waterneck. I bought it as a '65 up style, imagine my surprise when I opened the box. This has the round ports for the exhaust crossover - can someone tell me exactly what years it fits? I don't need it so I can let it go for $150 plus shipping.

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Check out my homepage at http://barney.wcupa.edu/~badgoat

Your intake is probably used on a 64 on down
pontiac. Check it against a 65-up intake.
The 64 on down intake has a long tab or flange at the back of the intake to cover openings on the cylinder head. Also the intake bolts are not in a direct line like a 65-up intake. They go up and down. I hope this helps
Blackcat....

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Mr. Z

Charley, i checked out my offy and the exhaust crossover is square. It looks like you've got a 65 and down unit.