92 SC vs 93 NA exhaust manifolds - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-22-2005, 11:32 PM   #1
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Default 92 SC vs 93 NA exhaust manifolds

I know they have different part numbers, but what is the difference? A quick visual inspection reveals that the 93 NA mani'* have less heat shielding on the front. That won't matter to me. I plan on having them ported and coated. Does anyone know any specifics that would make them a bad choice to get ported and coated for my 92 L67?
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Old 04-04-2005, 01:42 PM   #2
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Old 04-04-2005, 11:00 PM   #3
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I can only tell you that I needed a front manifold for my 95 SSEi and my local yard said they are interchangeable SC and NA, most of the years also.
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Old 04-04-2005, 11:47 PM   #4
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Originally Posted by BillBost37
I can only tell you that I needed a front manifold for my 95 SSEi and my local yard said they are interchangeable SC and NA, most of the years also.

this may be true but 92-93 were odd years with alot of changes for the 3.8 in Bonnevilles
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