LT1-LT4 Modifications 1993-97 Gen II Small Block V8

going from lt1 to ls1

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Old 06-16-2006, 02:53 PM
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i have a 94 with a lt1 and well my engine died! and someonbe had such a great price on a ls1 how hard would it be for me to go to an ls1
Old 06-16-2006, 02:58 PM
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besides the engine you need the ls1 tranny, wiring harness, gauge cluster, fuel system, k-member, radiator, pcm, and maybe some other stuff...
Old 06-16-2006, 02:59 PM
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Originally Posted by infinitebird
besides the engine you need the ls1 tranny, wiring harness, gauge cluster, fuel system, k-member, radiator, pcm, and maybe some other stuff...
DYAAAAAAAAAAAAAAAM!
Old 06-16-2006, 04:40 PM
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Re-sell it for more...
Old 06-16-2006, 05:02 PM
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There's a couple of websites dedicated to this swap and explains exactly what's needed etc. Theyre are also companies on ebay and on the net that sell everything needed as a kit persey. You can reuse the radiator and fuel system I believe.
Old 06-16-2006, 06:32 PM
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u don't need a tranny, 1 bellhousing bolt doesn't line up with the block
Old 06-16-2006, 06:35 PM
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if u reuse your fuel system u need a fuel rail from a 97-98 vette and there also a way to modify the harness so u can the older guages. i'm swaping mine out he shortly for an h/c ls6 in my 96 ss
Old 06-16-2006, 10:28 PM
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You'll need a CAI setup for an LT1 unless you want to go to a taller hood.
Old 06-17-2006, 07:49 AM
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quite a few doing this swap these days, EXCESSIVE is member here and has done it, he could give you some advice, think he come across a once in a lifetime engine deal though. It's all possible just comes at a hefty price.

I'd say save your $$ and stroke your LT1, or just buy an LS1 fbody and start over, but I'm partial to being an underdog LT1'er
Old 06-17-2006, 02:32 PM
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precisely Brett! was in the same situation. my 383 lt1 lost its guts in my driveway. and at the time i was working for gm. got a complete 2004 ls6 for free. so i had to entertain the swap. however. if you got any questions feel free to pm me



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