BB GM Heat Riser # 3940977 - The Supercar Registry

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BB GM Heat Riser # 3940977

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01-16-2010, 01:42 AM

my69rat

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Join Date: Apr 2008

Location: Michigan Sterling Heights

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Re: BB GM Heat Riser # 3940977

I have one and the exhaust manifolds that we took off my friends Chevelle back in 73 or 74 when we put headers on it. He was going to through em out so I keep them. The dates on the exhaust manifolds are K-7-9 October 7th 69. The heat riser only has a B34 on the balance arm. There looks like it might another number below that but I cant make it out. Is that the number on the bottom of the balance arm ? If it is I will try and make it out.

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