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Old 08-05-2015, 07:21 PM   #20
toddoky
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Join Date: Jul 2015
Location: Bowling Green, KY
Posts: 264
Re: Hooker 73-87 GM truck LS swap system

Quote:
Originally Posted by rs74 View Post
Question. Are the middle of the mounting flanges on the hooker exhaust manifold supposed to be split or one piece. I see in one of the pics you posted above they are one piece but then I saw these.
The cast iron manifolds are split to allow for expansion, the pictures I posted all show header flanges, which are not split.
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