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Wiring a LS1 into a LT1 Car

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Old 09-01-2011, 04:58 PM
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Originally Posted by the_merv
It'll have the wires in it, but doing a 1999-2002 one isnt that hard, and the PCM is a ton easier to tune.


Just get a Connector Pin Out for that car..the V6 & V8 wires are listed on them.
Ok, its just stuff i run across. I mess with fords(302's and 351's) and hondas more then i mess with chevy's. This swap is for my girl so i am wandering into unknown area of mod motors here.
Old 09-01-2011, 05:00 PM
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Sell the Honda's..scrap the Fords..and get with the fast ****..

These arent Mod Motors's BTW..
Old 09-02-2011, 11:09 PM
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I still just don't get why anyone builds Hondas. I'm not a Ford guy, but I wouldn't turn my nose up at a nice Mustang coupe (especially since I'd throw a BBC in it after the 302 gave up) but the whole import thing is just to me. Now I did have a friend with a really nice Supra awhile back....but it was rear wheel drive and an easy 11 second car on street tires and zero gutting. It didn't sound like a pissed off bumble bee either.
Old 09-03-2011, 01:56 PM
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This post makes me want another car I don't need haha. You can get 4th gen v6 cars blown motor for like $500. I prefer 93-95 anyway for the nose and emissions laws here.
Old 10-16-2011, 02:59 AM
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Can I use the PCM and harness out of 2000 Camaro ss to convert the LT1 into LS1 95 impala ss. Im trying to find out what I need to make this project work I have all accessories, both pcms, etc.. I need to know what to keep and will the camaro ss transmission go in with no problem its 4l60e with bigger valves and better servo from the one out of 1995 impala ss.( Merv anybody help me out).
Old 06-24-2012, 05:13 PM
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Trans will work and so will the harness.

I kno it's an old post.. Still will help tho..
Old 06-25-2012, 12:06 AM
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this is a good read
Old 06-25-2012, 12:27 AM
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Lots of good info here.
Old 06-25-2012, 04:23 AM
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Im going to start a ls swap in my 95 soon Merv if you dont mind and have time Ill have lots of qs for you maybe help me with the harness pinnout to ?
Old 06-25-2012, 07:33 AM
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Let me know..
Old 06-26-2012, 08:28 AM
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Rouda...I just did a 95 swap. Merv is the best on here but I might be able to help with some simple questions.
Old 06-26-2012, 11:00 AM
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Haha..I'm not the best..I just build stuff on my own and somehow it works..
Old 06-29-2012, 01:46 PM
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I see your original write up has changed a little, did you do anymore note taking when you did mine? Like a little more step-by-step?
Old 06-29-2012, 01:54 PM
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Nothing to really take notes on...just put the right wires in the correct places..

I have been touching up the first post to make it easier to understand..

Last edited by the_merv; 06-29-2012 at 02:06 PM.
Old 09-19-2012, 11:07 PM
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Default lt or ls computer

can i use a 96 b-body computer and tap ls1 harness into it? what the easiest way to do this?
Old 09-20-2012, 12:48 PM
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Default ls1 in b-body

so i will be removing my lt1 computer and un-needed engine wires and tapping in ls1 harness and only using ls1 computer? about to start my impala swap but trying to figure this out before i start..
Old 09-20-2012, 07:10 PM
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Yup..LS PCM.
Old 10-23-2012, 09:22 PM
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Default ground feed to fuel pump relay

is the ground feed to fuel pump relay # 23 grey on the blue pcm?
Old 10-23-2012, 10:03 PM
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Lt1swap.com..look for the PCM pinouts. I don't have my info infront of me..
Old 10-25-2012, 04:19 PM
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thanks alot for making this thread its helped through out the build, found it listed as a sender ground. lets hope this thing runs???


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