Name that LIM gasket - 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 05-06-2010, 02:14 AM   #1
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Default Name that LIM gasket

I recently bought a ported and polished L36 LIM, and I'm just going over it once, mostly cleaning off some dirt and grime. (Not much else to do. Justin did a great job on this.)

One thing I noticed was a worn gasket. Rectangular thing, just behind and below the thermostat port. (See attachment.) What'* that called, and is there a premade gasket or do I have to squeeze my own?
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Old 05-06-2010, 07:07 AM   #2
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I don't see anywhere you could buy the gasket itself. But I noticed on rockauto that the intake plenum gasket kit comes with the gasket you need. $33 for your year.

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Old 05-06-2010, 07:53 AM   #3
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It'* called the coolant manifold gasket. I'm not sure of the part number and can't find it alone anywhere. If you're swapping LIM'* you'll need the gasket kit anyway
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Old 05-06-2010, 08:46 AM   #4
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Stop in to a dealer. They usually have them. Cheap too.
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Old 05-06-2010, 08:50 AM   #5
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They sell that gasket at ZZP, if your planning to order other stuff, just order it. If that'* all you need, go to a dealer and save the shipping.
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Old 05-06-2010, 11:36 AM   #6
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Thanks! I don't have immediate plans to swap in that new LIM, but I'll definitely keep RockAuto and ZZP in mind when it'* time. (ZZP calls it the intake manifold end cap gasket.)

That kit, metal LIM gaskets, and a set of coolant elbows are all I need for a LIM swap, correct?
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Old 05-06-2010, 11:38 AM   #7
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Quote:
Originally Posted by SignOfZeta View Post
Thanks! I don't have immediate plans to swap in that new LIM, but I'll definitely keep RockAuto and ZZP in mind when it'* time. (ZZP calls it the intake manifold end cap gasket.)

That kit, metal LIM gaskets, and a set of coolant elbows are all I need for a LIM swap, correct?
And RTV silicone to do the LIM gaskets
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Old 05-06-2010, 12:25 PM   #8
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IMO, I wouldn't get LIM gaskets from ZZP again. They didn't fit properly. Not sure how that'* possible, they didn't and I had two engines in pieces at the time.

GM'* fit great on both. ZZP'* didn't sit right on the end seals, felt different......cheap.
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Old 05-06-2010, 12:30 PM   #9
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I used ZZP ones on mine and they seemed to fit fine but then again there may have been a minor detail I didn't noticed since I do have a very limited experience with cars.
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Old 05-06-2010, 01:58 PM   #10
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It was the end seals on the ones I experienced. They bowed up and wouldn't stay in the pin holes. Made it difficult to get the LIM situated properly while trying to use a third and fourth hand to hold them.
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