LS3 in 69

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Nov 28, 2011 | 02:43 PM

BB502

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Intermediate

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LS3 in 69

Hi

Will GMPP ECU wiring kit work with a used Corvette LS3 or does it only work with GMPP crate LS3 ?

//Peter

Nov 28, 2011 | 05:44 PM

Garys 68

Melting Slicks

Joined: Sep 2004

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The wiring should work, but are you considering the GMPP package with harness, pedal, ecu?
If so, check over on LS1tech conversion board, it seems the GMPP ecu is locked and not the best choice for any mods.
It might be cheaper to modify an existing harness and have the ecu reprogrammed.

Nov 28, 2011 | 07:34 PM

Gordonm

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From: Forked River NJ

I am putting a LS3 in my 72 and used a custom harness from PSI. Not in yet but the harness is top notch and I am using the LS3 computer that has been reprogrammed. Cost was not that bad either.

Feb 10, 2013 | 12:51 AM

sparky58

4th Gear

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From: Gilbert Arizona

Quote:

Originally Posted by Gordonm

I am putting a LS3 in my 72 and used a custom harness from PSI. Not in yet but the harness is top notch and I am using the LS3 computer that has been reprogrammed. Cost was not that bad either.

Can you share info with me about your motor change out? I have a 69 thinking to do the same.

Feb 10, 2013 | 01:29 AM

MrJlr

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From: Chino CA

I love ls swaps!!!!! Maybe me someday if I have the *****!!!!

Feb 10, 2013 | 05:53 AM

Gordonm

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From: Forked River NJ

Quote:

Originally Posted by sparky58

Can you share info with me about your motor change out? I have a 69 thinking to do the same.

Here you go. All the info I have so far. My project is stalled right now due to personal issues but it is running

http://forums.corvetteforum.com/c3-t...o-my-72-a.html

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