danielblackst1

Hey guys looking for info on what will or will not work with putting a v8 in a v6 car.

I bought a 98 ta out of alabama and it was in need of max tlc. I've given up on trying to restore this body but found a couple v6 cars on Craigslist in decent shape. My car runs and drives fine. Everything is there mechanically.

So should I look for a 98 body so I dont have any wiring issues? Will the engine harness and ecm from a 98 v8 car plug and play in a 98 v6 car? If I get a 99up car would my entire harness/ ecm plug and play? Or should I just seek out a 99 ecm to use anyway? Then I know I will have to change a few pins to use the 98 harness. All in all, what direction would be the easiest without much re-wiring?

Thanks

danielblackst1

Going to pick up a 99 v6 body next week. If there is any info on what I need to put my 98 v8 harness in a 99-up v6 car it would be much appreciated.

Thanks

danielblackst1

Pretty much do the harnesses match up from 98-02 v8 and v6 cars? I really need some help with this. The car I was going to get ended up being in worse condition than they said and I'd like to be sure before I buy a new car. Thanks

Sladester2

iTrader: (1)

pcm is different in 98 cars

DrEvyl

iTrader: (5)

Harness is different on '98 cars, also... if you use the '99 harness and PCM you should be okay AFAIK.

dp121

GM High Tech Performance covered a V6 to V8 firebird swap in their Feb '13 issue. Very good info in the article that will help you.

danielblackst1

Thank you much fellas

danielblackst1

Are you saying that the body harnesses are different? That a 98 v8 engine harness wont plug and play with a 99 v6 body harness?

y2k_ta

iTrader: (80)

https://ls1tech.com/forums/conversio...-6-7l-t56.html

danielblackst1

Anyone know of any issues to look for when putting a 98 harness and computer in a 99-up?