Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

l98 wire harness questions

Thread Tools
 
Search this Thread
 
Old 11-21-2018, 10:06 AM
  #1  
Junior Member

Thread Starter
 
230 firebird's Avatar
 
Join Date: Oct 2007
Location: east tenn
Posts: 57
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 pontiac firebird
Engine: sbc 350
Transmission: TKO 600 5 speed
Axle/Gears: 323 posi/disc from 86 gta
l98 wire harness questions

I know this question has been answered but I cant find it.I want to put an L98 corvette engine in my car to replace v6.Vendor says I need a wire harness from earlier car,Corvette is 1991,to run the engine and that the Corvette ecm will not match up with inside harness.Said I would need to have ecm that does not have "vatts" since my car doesn"t.Trying to do a swap on a small budget.
Old 11-21-2018, 10:16 AM
  #2  
Supreme Member

iTrader: (11)
 
scooter's Avatar
 
Join Date: Sep 1999
Location: NJ
Posts: 4,345
Received 298 Likes on 234 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: l98 wire harness questions

You might be able to mod the vette harness to work, but it would be easier to just find one and swap it over. What year is your car? That makes a difference getting stuff working in the car, plug and play. And if your car doesn't have Vats, then you need a VATS simulator, a PROM without or a memcal adapter and a chip. I just got the memcal adapter, and a chip from Tuned Performance to delete the VATS from my car.
Old 11-21-2018, 10:47 AM
  #3  
Supreme Member

 
ULTM8Z's Avatar
 
Join Date: Jan 2003
Posts: 4,035
Received 193 Likes on 167 Posts
Re: l98 wire harness questions

You can run the Corvette engine off a Camaro wiring harness and computer. The Camaro ECM's (p/n 1227730) are probably cheaper for one thing. The chip has the VATS on it, but that can be eliminated pretty easily by altering the calibration.
Old 11-21-2018, 11:27 PM
  #4  
Junior Member

Thread Starter
 
230 firebird's Avatar
 
Join Date: Oct 2007
Location: east tenn
Posts: 57
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 pontiac firebird
Engine: sbc 350
Transmission: TKO 600 5 speed
Axle/Gears: 323 posi/disc from 86 gta
Re: l98 wire harness questions

Thanks for the replys.My car is an 87.I know now I can buy the engine and get seperate wire harness and computer.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
thebluevixen
Electronics
1
05-07-2017 07:07 PM
Alec Bryant
TPI
19
11-07-2014 06:30 PM
jerzeydevil
Interior Parts for Sale
2
03-12-2013 07:11 PM
mr420joe
LTX and LSX
3
10-12-2009 10:18 PM
iggy1991
TBI
10
02-27-2005 12:39 AM



Quick Reply: l98 wire harness questions



All times are GMT -5. The time now is 10:54 PM.