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BBO exhaust manifold on SBO

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Old March 11th, 2019, 03:54 AM
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BBO exhaust manifold on SBO
Just curious if 455 exhaust manifolds will work on a 350 both 1971 going into a supreme. I have a set and my Small block manifolds have a crack along the bolt hole.

Thanks in advance

-Chris
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Old March 11th, 2019, 05:31 AM
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Chris, the manifolds will fit on your 350 but the deck height is different between the SBO and BBO. Therefore you will probably have interference problems. Have you looked into having your SBO manifolds repaired? A good welding shop can fix cast iron no problem.
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Old March 11th, 2019, 06:19 AM
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The non high performance ones that have the crossover port will work. The high performance ones hit the oil filter adapter.
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Old March 11th, 2019, 10:44 AM
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I have a couple of nice SBO exhaust manifolds. I’m in the Chicago area. Shipping is the deterrent.
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