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.

UIM Project questions *** UPDATED WITH PICS ***

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Old 02-06-2006, 12:54 PM
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jr's3800,

I have a question about your post. Those GM part numbers for the lower intake gasket and coolant elbow, are these applicable to my 1995 Bonneville SLE? I think I'm going to order the Dorman UIM and the GM lower gaskets and elbow. Oh yes, I have two more questions. On the Advance Autoparts web site, the description for the Dorman product is "Dorman Intake Manifold: OE Solutions™; 1995-2003 Buick 3.8, Series 2". The part number is 615180. Even though the description says Buick, is this the correct part? Also does the FelPro gassket have the metal inserts? Thanks again for all of the help.

Sincerely,
LeifW
Old 02-06-2006, 01:33 PM
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2nd design ones I've picked up didn't have the inserts. They were all plastic/rubber.
Old 02-06-2006, 01:55 PM
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FelPro: The first design doesn't have the locating pins, Second has them..and looks a little different.

Metal inserts I think is dealer only at the moment. I haven't seen them to make an opinion yet.

Valve covers are easy on the NA motors with or without intake in place. If this was SC I'd suggest valve covers.

Overall opinion on the gaskets is up in the air.
Old 02-06-2006, 07:07 PM
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The GM OEM intake gasket is manufactured by Victor Reinz:
Manifold Set, Intake:
    Plenum Gasket

      These are the part numbers for Corteco brand; another supplier for GM:
      Intake QuicKit -
        Old 02-06-2006, 09:54 PM
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        jr's3800,

        What are the guide pins? I assume they help line up the lower intake gasket. Do they come with the GM gasket? Also, the part number you gave for the GM gasket (GM Intake Gasket PN# 89017400 ). I assume that this is fine for a 1995 Bonneville?

        Sincerely,
        Leif

        P.*. I apologize for all of the annoying questions. As it stands, I'm going to order the Dorman UIM. If you tell me that the above mentioned GM part # is good for the 1995 Bonneville, then I'm going to order the LIM gasket and the coolant elbow from GM parts direct.

        P.*.*. Thanks for the hard work in answering my questions.
        Old 02-07-2006, 09:45 PM
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        jr's3800, willwren, and everyone else,

        Thank you so much for taking the time to answer all of my questions. I'm ordering the parts tomorrow. I imagine my brother and I will do the work shortly after getting the parts. When we're done I'll post the pictures and describe our work. Thanks again for all of the information. This site has been so helpful in keeping the Bonnie runnning.


        LeifW


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