Conversions & Swaps LSX Engines in Non-LSX Vehicles
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97 Fbody LT1 TO LS1 Swap

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Old 01-21-2009, 06:28 AM
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Originally Posted by the_merv
Exactly, these Harnesses are not hard to build.
I'll second that. I also agree completely with the master issue. I went with a McLeod Adj. Master. I'm sure making one work or switching to the LS1 pedals assembly would be just as easy and for less money.
Old 01-21-2009, 09:05 AM
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i cant seem to find the info on the wires that need to be swapped. I think i might have to go the speartech route
Old 01-21-2009, 09:24 AM
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Info is everywhere..lol

You must never read my Wiring Guide. Click on the part in my sig that says my Engine, it will take you to it.
Old 01-21-2009, 10:09 AM
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I prob read it but didnt understand what i was reading lol... I guess i am looking for the one with the mspaint pictures lol....
Old 01-21-2009, 10:15 AM
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Looks good!
Old 01-21-2009, 10:34 AM
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Originally Posted by 3800RS
I prob read it but didnt understand what i was reading lol... I guess i am looking for the one with the mspaint pictures lol....
I never put pics in mine, but I made a pretty detailed guide.
Old 01-21-2009, 12:28 PM
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Originally Posted by 3800RS
i cant seem to find the info on the wires that need to be swapped. I think i might have to go the speartech route
I returned your pm, answer a few questions for me and i will do whatever i can to help.
Old 01-21-2009, 12:29 PM
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Originally Posted by the_merv
I never put pics in mine, but I made a pretty detailed guide.

I dont have any pics either, just an excel file that says what wires need to move where. It was super easy, although it was a little more challenging making it look good, but it was worth saving the 500 for me. Me=Poor, lol
Old 01-21-2009, 12:32 PM
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I have all the pics of what I did at home..kinda not there at the moment..lol

I'm still modifying it though, just little things that I'm doing to make what is there better.
Old 01-21-2009, 12:33 PM
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One more thing, i totally ditched my ABS also, i just did all the fittings myself, it does not look like i want, so it will be redone this summer.

I have only had the brakes lock up ONE time in the rain under some serious panic braking(lady coming into my lane fast)
Old 01-21-2009, 03:30 PM
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Originally Posted by AnniversaryZ28
it was worth saving the 500 for me. Me=Poor, lol
lol, i cant see spending the $500 if i can figure it out. returned your pm
Old 01-22-2009, 12:50 AM
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I just finished reading the shbox site along with some ls1 wiring info. I think i understand it for the most part.

If i am correct the Lt1 car will not have a harness C101 ?

The Coils get powered from Fuse #11 on the Lt1 box ? I assume both the even and odd
Old 01-22-2009, 01:03 AM
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^You are on the right track. The LT1 doesn't have the C101 Plug, correct.
I believe Fuse #11 is the Ignition, Fuses #9 & #10 are for the Injectors, Banks 1 & 2.
Old 01-22-2009, 09:34 AM
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3800RS-

I would assume your car has 2 fuel lines going to the motor like the lt1s of that year?

I know this was talked about at the very start of this thread, but if yours is setup that way, you have a few options for fueling.

I bought the fuel filter from a 00+corvette for 50 bucks from the local parts store, and simply plugged it in right by the rail. It does not look the best, but it is a temp solution till i feel like going underneat the car and making it leak neat and such.

Ebay also has a fuel rail setup that gives you the feed and return for 175 i think, it does not show it in the picture, but if you read the description, (i have also talked to them) it will indeed do what you need.

Here is the ad

http://cgi.ebay.com/ebaymotors/PRO-L...Q5fAccessories

I know it does not show the return quick disconnect, but it is the one that you would need. I was going to go that route but funds ran low and the 50 filter did the exact same thing.

You could also try and find the fuel rails from a 97 corvette, they have feed and return hook ups also, but they are $$$$$
Old 01-22-2009, 09:42 AM
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Originally Posted by the_merv
^You are on the right track. The LT1 doesn't have the C101 Plug, correct.
I believe Fuse #11 is the Ignition, Fuses #9 & #10 are for the Injectors, Banks 1 & 2.
On my current box it says fuse 9 = Injector 15amp and fuse 10 = Engine sensor 20amp

Originally Posted by AnniversaryZ28
3800RS-

I would assume your car has 2 fuel lines going to the motor like the lt1s of that year?
yes i think i have 3 lines comming in to the bay, 2 are for fuel and i think the 3rd is a vent ?

Once again guys i appreciate the info
Old 01-22-2009, 11:19 AM
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I was going off of the V8 Fuse Box, that is what mine had said.

Look in my thread of my Swap, that will show you a good way to do the Fuel System.
Old 01-22-2009, 01:20 PM
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Originally Posted by the_merv
I was going off of the V8 Fuse Box, that is what mine had said.

Look in my thread of my Swap, that will show you a good way to do the Fuel System.
Yea i saw that. I think i got most of the info i will be needing. Merv do you know off hand if anything changed for the 2000 ls1 wiring ? I am looking at a deal on one now.
Old 01-22-2009, 02:29 PM
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Na, the 1999-2002 LS1 Wiring is identical, the only difference is Manual or Auto.
Old 01-22-2009, 04:00 PM
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Originally Posted by the_merv
Na, the 1999-2002 LS1 Wiring is identical, the only difference is Manual or Auto.
Thanks.
Old 01-23-2009, 03:44 PM
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from what i understand you dont touch or move the pins from the ls1 red and blue pcm connectors. correct ?


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