'88 Iroc LS swap, th400, 12bolt street car
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 18
Likes: 0
From: IN
Car: 88 Iroc
Engine: LM7
Transmission: TH 400
Axle/Gears: 12 bolt 3.91
Re: '88 Iroc LS swap, th400, 12bolt street car
The car is 95% wired. It needs the pigtail attached to the Holley EFI, then run to the fans and fuel pumps so the Holley can control them both. Gauge wiring needs to be run to sensors.
needs the intake/tb bolted up. Needs front motor accessories bolted up. I have all gaskets and bolts for this. Need to measure and purchase an accessory belt. I have radiator hoses from the SBC setup, not sure if they will work.
Needs carpet installed (which is brand new and trimmed to fit), fluids topped off.
Needs a tune. Hyperaktive owes me a base tune. He will install base tune remotely. Then the Holley will self learn. And from the results of some other Holley users, the self learn works pretty damn well.
That's really it. One good weekend and it could be done and running. I have totally lost interest at this point. Poor car has been sitting like this since April while I'm out riding my Harley!
needs the intake/tb bolted up. Needs front motor accessories bolted up. I have all gaskets and bolts for this. Need to measure and purchase an accessory belt. I have radiator hoses from the SBC setup, not sure if they will work.
Needs carpet installed (which is brand new and trimmed to fit), fluids topped off.
Needs a tune. Hyperaktive owes me a base tune. He will install base tune remotely. Then the Holley will self learn. And from the results of some other Holley users, the self learn works pretty damn well.
That's really it. One good weekend and it could be done and running. I have totally lost interest at this point. Poor car has been sitting like this since April while I'm out riding my Harley!
Junior Member
Joined: Apr 2006
Posts: 52
Likes: 0
From: Pittsburgh, PA
Car: 1989 IROC-Z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Just About STOCK
Re: '88 Iroc LS swap, th400, 12bolt street car
I have a '99 HD FXDX that I might be interested in trading if you have any interest...
I too put the F-bodies to the side and went the bike route.....for years....now I am back in the F-body mood.
I too put the F-bodies to the side and went the bike route.....for years....now I am back in the F-body mood.

Thread Starter
Junior Member
Joined: Oct 2009
Posts: 18
Likes: 0
From: IN
Car: 88 Iroc
Engine: LM7
Transmission: TH 400
Axle/Gears: 12 bolt 3.91
Re: '88 Iroc LS swap, th400, 12bolt street car
Junior Member
Joined: Apr 2006
Posts: 52
Likes: 0
From: Pittsburgh, PA
Car: 1989 IROC-Z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Just About STOCK
Re: '88 Iroc LS swap, th400, 12bolt street car
Finally got a chance to go through most of your pics last night. I would be looking to put back the heater box, speedo, etc. Was the harness cut in spots to entirely remove everything needed for those? I'd love to get A/C in it too, but heat and speedo are the first priority.
Trending Topics
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 18
Likes: 0
From: IN
Car: 88 Iroc
Engine: LM7
Transmission: TH 400
Axle/Gears: 12 bolt 3.91
Re: '88 Iroc LS swap, th400, 12bolt street car
The entire harness was gone through and all the wires removed for the parts that I removed off the car. the purpose was to get the car as light as possible to race in a certain class. So, no the wires are not in the car. However, because we didn't "chop" anything, they could probably be put back in.
The heater box was sold locally, and the speedo was traded to ThirdGen Ranch. The car hasn't had a/c since 1997 lol
The heater box was sold locally, and the speedo was traded to ThirdGen Ranch. The car hasn't had a/c since 1997 lol
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 18
Likes: 0
From: IN
Car: 88 Iroc
Engine: LM7
Transmission: TH 400
Axle/Gears: 12 bolt 3.91
Re: '88 Iroc LS swap, th400, 12bolt street car
To the top. Car just had the paint freshened up on both bumpers and the chin spoiler!
Want a title? Post!
Joined: Feb 2010
Posts: 0
Likes: 0
From: Bay Area, CA
Car: 1996 Supra TT, 1971 GMC Jimmy
Engine: 2JZ-GTE, SBC 350
Transmission: Getrag 6-speed, TH400
Axle/Gears: stock
Re: '88 Iroc LS swap, th400, 12bolt street car
Is this car still available?
Member
Joined: Oct 2012
Posts: 103
Likes: 0
From: Indianapolis
Car: 1992 Camaro RS
Engine: 1978 L82 355
Transmission: 700R4
Axle/Gears: 3.23
Re: '88 Iroc LS swap, th400, 12bolt street car
Where are you located at in Indiana? Feel free to shoot me a pm. Would like to come check it out when the weather isn't as bad as it is now.
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 18
Likes: 0
From: IN
Car: 88 Iroc
Engine: LM7
Transmission: TH 400
Axle/Gears: 12 bolt 3.91
Re: '88 Iroc LS swap, th400, 12bolt street car
Heads were taken off, valve jobbed and cleaned. Motor is going together soon!
Thread
Thread Starter
Forum
Replies
Last Post
mustangman65_79
Body
3
Aug 11, 2015 03:17 PM






