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full l67 swap guide?

 
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02lss
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PostPosted: Sun Aug 07, 2011 12:16 pm    Post subject:  full l67 swap guide? Reply with quote

First off i would like to say I have found alot of usefull information from this site regarding the l67 top swap and impalas in general. But i have been searching for days and haven't really found what i have been wondering about swapping a full l67 and HD trans into my 01 impala (3800). Sorry if this has already been answered but i couldn't find it.

I can buy my 1997 GTP back for 200$ and was wondering :
Can i use the wiring harness and computer from THIS car along with motor, trans, axles, ETC in my impala?

Or if anyone could point me into the direction of a guide of some sort or a list of compatable parts to make my car supercharged. As finding parts for a supercharged impala or monte on the island is nearly impossible.
My main concern is wiring obviously.
Oh and also. Are the cradles different from the l67 and n/a cars? I have heard yes and no.

As said before, Sorry if these questions have already been answered, I have tried searching but couldn't find what i was looking for exactly.

Any help will be greatly appreciated,

Kyle.
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IffyG
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PostPosted: Sun Aug 07, 2011 1:18 pm    Post subject:   Reply with quote

FWIW, I wouldn't do that swap with a 97 GTP. The 1997 GTP was a red headed step child. It has a different transmission, different PCM and some other random things here and there that will make your life miserable.

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02lss
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PostPosted: Sun Aug 07, 2011 1:28 pm    Post subject:   Reply with quote

Hahahahahah I got a good laugh from that, what about using just the motor? And using my trans? or getting the trans and wiring from another year GTP? Could i mix and match the trans and Wiring from years? If so what year would be best to get the wiring and computer out of?
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IffyG
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PostPosted: Sun Aug 07, 2011 3:37 pm    Post subject:   Reply with quote

Like I said earlier, you probably don't want to use anything from the 97 GTP. I believe one of the differences with the PCM in the 97 is that the knock sensors are part of the PCM... I think it would be difficult to impossible to make that work with the Impalas BCM.

Why aren't you considering a top swap? It would certainly be easier than trying to piece together stuff from your car, a 97 GTP and another L67.

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grimsin
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PostPosted: Sun Aug 07, 2011 5:29 pm    Post subject:   Reply with quote

topswap dat shiz! more powa!! Twisted Evil keep your tranny but get a hd diff.
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02lss
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PostPosted: Sun Aug 07, 2011 7:53 pm    Post subject:   Reply with quote

Well my current motor has 270 K on it and the tranny slips bad, so i dont want to topswap that and im hoping to just get what i need without having to order or reprogram anything.
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nightryder
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PostPosted: Sun Aug 07, 2011 7:53 pm    Post subject:   Reply with quote

IffyG wrote:
I believe one of the differences with the PCM in the 97 is that the knock sensors are part of the PCM


That's the first I've heard of that Confused

You can swap the engine in and keep the stock trans/wiring harness. Ditch the 97 MAP sensor and use an L32 MAP sensor (plug and play with the 01 harness). The BCS will require some wiring if you want to use it, I don't use it. The MAF connector might be different, I'm not sure. Keep the Impala's O2 sensors. The rest of the sensors should plug right up to the Impala's harness.

You will need to swap flex plates, I don't think the 97 GTP's came with dual drilled plates.

You will need a DHP tuner and a copy of OSID 12588500 ('04 L67 MCSS). Flash that to the stock PCM, disable a few O2 sensor codes, and swap the stock trans tables over.

That said...It's better/easier to topswap unless there's some obvious issues with the your L36 block.

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IffyG
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PostPosted: Sun Aug 07, 2011 8:48 pm    Post subject:   Reply with quote

nightryder wrote:
IffyG wrote:
I believe one of the differences with the PCM in the 97 is that the knock sensors are part of the PCM


That's the first I've heard of that Confused


I might have misremembered the knock sensor part, but there is definately something different with the 97 PCM

zzp wrote:
Unique PCM for this year only, removable chip making case learn unneeded


http://www.zzperformance.com/g......php?id=10

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nightryder
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PostPosted: Mon Aug 08, 2011 8:37 am    Post subject:   Reply with quote

There's no doubt that the 97 PCM is different, I was just curious as to where the knock sensor thing came from. The knock sensor needs to be attached to the engine in such a way that it can pick up on the "pinging", a knock sensor being part of the PCM doesn't make a lot of sense to me Laughing

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PostPosted: Mon Aug 08, 2011 10:20 am    Post subject:   Reply with quote

From what I remember in the f-body world, the earliest generation of knock sensors had some of the circuitry on the pcm, maybe for some of the filtering. Later that was included in the sensor. May be what is being referred to here.
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PostPosted: Mon Aug 08, 2011 11:59 am    Post subject:   Reply with quote

That would make sense, I took it as the entire sensor being in the PCM.

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