SC with NA - 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 04-22-2004, 10:58 AM   #1
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Is it possible to mount a Series 2 SC engine to a Series 2 NA Transmission? Or does GM use the same transmission for several different cars and it would be fine?
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Old 04-22-2004, 11:03 AM   #2
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I dont think so; the SC has a 4T60-HD to handle the L67 power.

SE, SLE dont have he 4T60-HD
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Old 04-22-2004, 12:05 PM   #3
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Quote:
Originally Posted by Jim W
I dont think so; the SC has a 4T60-HD to handle the L67 power.

SE, SLE dont have he 4T60-HD
First of all i'm assumin that he is talking about his 97. Yes it'll work just fine. But the 97 has a 4t-65e.

Yes it'll take the power, but not anything heavily modded. 65'* seem to fail more then the older 60'*. If you want the best power option for you car, long term, get a 97-99 L67 with a 4t-65e HD tranny on it, and a PCM and wiring harness.
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Old 04-22-2004, 01:32 PM   #4
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this site will help tons too......www.l67swap.com
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Old 04-22-2004, 10:03 PM   #5
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In 1997 only the SSEi'* got the 65, everyone else got the 60. You could always run the tranny on the SC until it dies and then get a rebuilt HD.
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Old 04-23-2004, 02:34 AM   #6
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How long would that take? Or is there some type of package I can buy to beef up the tranny to hold a SC engine?
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Old 04-23-2004, 11:36 AM   #7
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Quote:
Originally Posted by macho_mike21
In 1997 only the SSEi'* got the 65, everyone else got the 60. You could always run the tranny on the SC until it dies and then get a rebuilt HD.
Not quite right, Mike. The SSEi and SC'd SE/SSE got the 65-HD in 97, and the non-supercharged models got the 65.

The last year for the 60 series transmissions was 96.
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