hey guys i just picked up an 85 iroc z... ok lol i hate 5.0s thats all ive had in the past . any way i have a chance to pick up an 87 gta TA hit in the side with 89 thousand miles on it... it has a strong running L98 in it with a good tranny.. and it just so happens the 700r4 is gone in my car and in need of a replacement ... will this complete engine just drop in and be able to work with the wiring that i already have there for a lb9 5.0 tpi engine i realy want this to be a plug n play swap... i was thinking all id hae to do is take the 350 chip out of the gta n put it in the computer in my 85 5.0 computer ... let me remind you both cars are tpi and have the older style heads along with mass air flow sensor...so i assume it should work or should i just put the gta computer in my 85 iroc...please help me out guys...

 

Man, you're all over the place with your numbers there. . .

The '85 computer was different from the '86-'88 computers, so the chip won't work. The wiring should be the same, but I wouldn't swear to that. Use the L98 computer and knock sensor/module.

 

the original ecm 1226870 used maf and control module to measure air flow. The ECM changed to 1227727 for the integrated control module in 86 and 87.

Not sure, but can you use the old distributor for the old harness-ecm? If you change it, use the 727 ecm and the 87 harness.

 

ok so im hoping that i will be able to just take the computer from the gta and be able to just hook it up in my iroc with out changing any of the wiring then... that would be great...can any one tell me if the 87 gta computer would just swap right in for sure...

 

yeah i want to do this as easy as i can but i also dont want to lose power that i could have gained by using something else on the gta with the swap...as for the distributer i realy wanted to just to take the complete gta engine out end drop it in and do as little wiring changes as possible...
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hey guys i maid a mistake in the title to this post its an 87 gta engine getting swapped in not a 98 lol wow im a goof id edit the title but i cant figure out how...

 

could one of the mods please fix my title from 98 gta to 87 i cant seem to fix that error with the edit program...