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BBO exhaust manifold on SBO

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Old

Mar 11, 2019 | 03:54 AM

#1

Tsiakos1987

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Registered User

Joined: Aug 2018

Posts: 6

From: Oshawa, Ontario

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

Mar 11, 2019 | 05:31 AM

#2

Olds64

Moderator

Joined: Jul 2007

Posts: 18,263

From: Edmond, OK

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

Mar 11, 2019 | 06:19 AM

#3

olds 307 and 403

Out of Line, Everytime😉

Joined: Dec 2006

Posts: 10,148

From: Melville, Saskatchewan

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

Mar 11, 2019 | 10:44 AM

#4

Dave26

Registered User

Joined: Jul 2008

Posts: 339

From: NW Indiana

I have a couple of nice SBO exhaust manifolds. I’m in the Chicago area. Shipping is the deterrent.

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