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

v6 to v8 swap

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Old 02-03-2009, 03:27 PM
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ok i got everything going on with the swap the hardest part so far IS THE WIRING lol, im changing all my 97 stuff over fuel pump,tank, rear axle,dash,

ok now is it plug and play for the inside for the car from the v6 or i got to change in the inside car from 95 to 97 and thats about im worried about the inside of the car wiring now
Old 02-03-2009, 07:25 PM
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Originally Posted by blk96z07
ok now is it plug and play for the inside for the car from the v6 or i got to change in the inside car from 95 to 97 and thats about im worried about the inside of the car wiring now
The inside wireing (body harness) will work fine, if you get 95 engine harness / PCM. Will be plug and play.

Your 97 is OBD II wich will be a little different from the 95 OBD I harness but if you move wires around on the connectors you can make it work. Little more work this method.

Try this link it will help you a lot.
http://www.tacreationsusa.com/3_4_3_8_v6_to_lt1.htm

Last edited by LT1; 02-03-2009 at 07:33 PM.
Old 02-04-2009, 10:47 AM
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ok well i swapped from a V6 A4 to a LT1 M6 in 3 days. without a lift in the rocks and rain. using 1 jack and a bunch of 2X4s and metal tubing. if you have any questions let me know. il hook you up
Old 02-04-2009, 12:17 PM
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as of today 97 is almost stripped and poor v6 is sitting. i dont know if to buy a 95 engine harness or change all that wiring? im not hip on wiring

is it all that bad of a deal to switch the connections over?
Old 02-04-2009, 01:02 PM
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i did a v6 to lt1 swap last winter and i put a 93 lt1 into a 96 v6.

only harness i swapped was the engine harness, i just had to get the pin outs of the 3 plugs in the passenger kick panel for the 96 and 93 and just swap the wires around so they will all match up. because the plugs will be the same, just some of the wires will be in different places. i also had to change out the plug and match up the wires to the one on top of the passenger wheel well because i didnt swap out the front harness. but you dont have to worry if you already swapped the front harness
Old 11-04-2013, 01:49 PM
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Originally Posted by fergymoto
The V6 front end harness will not be plug and play with the V8 engine harness.

If you swap the V8 front end harness to the V6 car, that is plug and play, and in turn makes the engine harness plug and play.

If you use the V6 instrument cluster, the tach will read high. Switch the the V8 cluster and all is good.
Does that apply to ls1 cars as well???



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