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Lt1-to LS1 swap

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Old Jul 15, 2008 | 08:15 AM
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Almost Stock TA's Avatar
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Lt1-to LS1 swap

i gota 95 TA n i was goin up to the lake when i saw this recked 99 ta LS1 owner says it will still turn over but wnt start im in the process of buying it. I know it is more work than i think im just woundering about the wireing harness does any 1 make a conversion harness? also are theengine mounts diferent? Im just trying to through together a parts list. any ideas? thanks Evan
Old Jul 15, 2008 | 12:46 PM
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you could probably search this site and ls1tech and find tons of info on that subject
Old Jul 15, 2008 | 06:54 PM
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You will need to old harness. Get a BMR K-member and the motor will slide right in. You may need a trans crossmember too. I don;t know about the gauges. Maybe the ls1 gauge pod would work then you would just have to splice it in.

-Geoff
Old Jul 16, 2008 | 10:45 AM
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mine is on the street now!
Old Jul 16, 2008 | 09:48 PM
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Originally Posted by Shon Herron
mine is on the street now!
So what all did you need as far as wiring. Was it a difficult swap? Any adivice or helpful hints would be great
Old Jul 17, 2008 | 06:23 AM
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With the pricing of the LS1 cars now, I would just buy one of those, LOL.
I hate wiring so the whole thing was a PITA for me, and come to find out the swap information I had was not totally accurate OR my wiring harness from the LS1 is different that what I am reading over on LS1tech.

I can add more details later.....
Old Jul 17, 2008 | 07:14 AM
  #7  
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You will need a LS1 K-member (stock or tubular), LS1 steering rack&pinion along with steering shaft. LS1 headers. LS1 specific throttle cable.
You will still use the LT1 x-member but you may have to modify them slightly.
You have some option on fuel delivery, consensus is that the stock LT1 pump is not enough, I did a walbro 255 intank and using the vette reg/filter and retained the stock fuel lines (feed and return) and ran a rubber line from there to the fuel rails.
Wiring for me was a PITA b/c I wanted to use the stock 97 gage cluster, but just to get the car going was easy, it was the little stuff getting it all to work was the pain, and I still cleaning up small little issues.
Old Jul 17, 2008 | 08:52 AM
  #8  
Almost Stock TA's Avatar
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Dido on the wiring lol sounds like a pain thanks man

Evan
Old Jul 17, 2008 | 11:44 AM
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if the car is wrecked, why not buy the whole car? you can swap the dash assembly and the engine/tranny/k-member/front suspension from the donor car into yours.
Old Jul 17, 2008 | 11:55 AM
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Originally Posted by JeremyNYR
if the car is wrecked, why not buy the whole car? you can swap the dash assembly and the engine/tranny/k-member/front suspension from the donor car into yours.
Buddy of mine did this, took every thing out of his 93 and put everything in from the 99SS he picked up. Once he got the BCM fixed (FUBAR'd during crash) it runs well.
Still could sale/part out LT1 car and buy an LS1 car, several in the $4k+ range....
Old Jul 17, 2008 | 11:42 PM
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Yaeh i am buying the hole car sry i didnt mention that ill proly just make one big swap. the chick only wants $1000 4 the hole thing n its not in that bad of condition plus she said she just had the engine re-freshed!!! im gona go pick it up saturday
Old Jul 18, 2008 | 01:27 AM
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Jump on that schitt like an E-2 off cruise.....

-Ivan
Old Jul 18, 2008 | 03:05 PM
  #13  
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Yeah no dout i cant pass that up it's loaded to!! i wana swap out the brakes and leather interior i have cloth and i was told the honey comb tail lights wer derect fit and the rims are good its just to good of a deal to pass up my budy is jumping at the chance to buy it if i dont
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