C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Ecm For Ls1 Motor

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Old Jul 26, 2006 | 04:33 PM
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Default Ecm For Ls1 Motor

I have been offered a LS1 motor and tranny without ECM, which I am considering for my 88 C4, and have a couple of questions.

I. Does anyone know where I can buy the EC unit?
2. Any idea what a new one costs
3. How safe is it to buy used from a junk yard

Thanks in advance
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Old Jul 26, 2006 | 04:47 PM
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dude... you are in South Africa? Damn, the shipping alone will be a bitch.

With that said, some of the late 90s Firebird/Camaro V8 PCMs should be ok.

Does Holden (Australian GM) sell cars there? If so, I would suspect that might work, too.

You getting a harness with this engine? expect upwards of $800.00 USC for this.
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Old Jul 26, 2006 | 08:15 PM
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Default What year engine?

I got one ecm already programmmed for a 98 corvette which went in my 66 corvette. the engine will work but making it work with a 88 will be complicated. Send me a pm if interested. $300.00
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Old Jul 26, 2006 | 09:23 PM
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I met a guy this year at Bloomington Gold who had put a Firebird LS1 in his 73 Corvette. He told me of this website. Hope it helps:
http://ls1tech.com/forums/
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Old Jul 26, 2006 | 10:04 PM
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Originally Posted by 66grandsport
I got one ecm already programmmed for a 98 corvette which went in my 66 corvette. the engine will work but making it work with a 88 will be complicated. Send me a pm if interested. $300.00
Not really... all you have to do is loose the factory ECM completely.
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Old Jul 27, 2006 | 03:44 PM
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It wasnt programmed for 98, but to run any hot rod car with an LS1 engine.
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Old Jul 27, 2006 | 03:59 PM
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I think you missed my point, the original L98 ECM has to go bye-bye.

The LSx PCM then gets flashed so it's simply a stand alone engine controller.
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