SI VS SII - 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 11-29-2007, 01:39 AM   #1
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Default SI VS SII

How difrrent are the mounts. I have to replace the SI and would like to replace it with the SII, but I do not have access to all the tools needed to mod the mounts.
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Old 11-29-2007, 02:27 AM   #2
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Is the S2 from a 92-99? The mounts should be identical except MAYBE the rear trans mount. The front trand mount may or may not have a shock attached, but either with or without will work.

Are you using the torque axis mount on the passenger side? If not, do you have the GP mounts? Or is your motor from a 2k?

We need more details. Mounts depend on the motor AND the vehicle/frame mounting.
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Old 11-30-2007, 07:54 PM   #3
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The motor would be going into a 89 Buick Reatta. Also I can get a motor from any year I choose I just do not have tools to be moding the motor mount to a great degree.
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Old 11-30-2007, 07:55 PM   #4
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mmmm, that may be more of a challenge since your reatta has the LN3 in it... im not sure how similar/ different the mounts are in your car though...
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Old 12-02-2007, 09:33 PM   #5
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the S1 and ln3 have the same mount bolt patterns are, so I need a good confermation that the S2 has the same patern or not.
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