93-92 Swap - Page 2 - 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 03-11-2008, 11:10 PM   #11
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Quote:
Originally Posted by roadtech195
Could he just unbolt the sub frame and swap everything out? Will the wiring harnesses be the same?
all mounts will bolt up directly. no issues between the 92 to 93.

the harneses are slightly different. but his 93 will only have extras. so no modding needed. except for one possible difference i can think of. that is the trans connector. the 92 and 93 have the same pin-outs, but iirc, the 93 trans has little notches. very minor problem.
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Old 03-11-2008, 11:20 PM   #12
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Hmm ok the "boss" is yelling at me so I will be back on tomorrow to see if I can fully understand this which it hink I do.
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Old 03-12-2008, 01:37 PM   #13
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Quote:
Originally Posted by samueljackson
actually, if you get the e-prom from the 92, you will be fine. no egr, hb, nor css will be needed.
That is a BIG no-go. Harmonic balancers, and the tone rings associated with them, are different. Meaning different signals going to the PCM.
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Old 03-12-2008, 05:51 PM   #14
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Quote:
Originally Posted by sandrock
Quote:
Originally Posted by samueljackson
actually, if you get the e-prom from the 92, you will be fine. no egr, hb, nor css will be needed.
That is a BIG no-go. Harmonic balancers, and the tone rings associated with them, are different. Meaning different signals going to the PCM.
in my p/a i am running a 93 pcm that came out of an sse (which is the same as the original 92) . the prom is from a 92 ssei.
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Old 03-12-2008, 06:12 PM   #15
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Just swap the 93 motor, trans, wiring harness, and PCM into the 92 Body and you should be fine. you might possibly have to change the dash harness, but I would venture to guess no.

If you don't use the 92 parts, there will be no need to worry about the Harmonic balancer/PROM/Crank Sensor, etc.

If you were looking to mix and match parts, that'* where the issues arise.
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Old 03-12-2008, 06:29 PM   #16
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in my p/a, theschematic listed many unused pins for the pcm. well, all the harness wires from the firewall to the pcm were there. i cant say for certain, but i would bet the bonne to be the same case. if that is the case, all you would have to do is just unplug the harness from the firewall of the 93, and plug it in the the firewall of the 92. then just swap the pcm with prom, and ur good.

as jimmy said, if you try to mix match parts, thats when problems may arise.
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Old 03-12-2008, 06:36 PM   #17
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Wasn't planning on mixing and matching the parts, just swapping the whole drivetrain from one to the other. So it should be no problem with bolting right up then swapping the harness and PCM from the 93 into the 92?
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Old 03-12-2008, 07:35 PM   #18
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it should be a fairly easy swap, as far as eng swaps go. all the mounts are the same.
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Old 03-12-2008, 07:46 PM   #19
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Tonesta, ever done something like this before?
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Old 03-14-2008, 05:07 PM   #20
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Not a swap but a friend and I dropped a new block into his Honda Civic. Thats about the extent of it. Anyway this threads dead since the car might possibly sold very soon and replaced with a green and gold laced rim bonne.
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