Junkyard 89 IROC build
02-28-2013, 10:09 PM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Junkyard 89 IROC build
I was asked to do this so here goes. I aquired this car for $800 while searching the local boneyard for parts needed for my 82 Z28. It was missing the steering column, steering box, rag joint, blower motor, fog lights, grille, wheels and tires, and no title. I had always wanted an IROC and when I saw this car I was head over heels.
02-28-2013, 10:31 PM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
If you think this one is rough you should've seen my 82! Anyway, after bringing it home I picked up some plug wires and stole the column out of my 82 and fired it up only to discover a serious knock in the engine which turned out to be spun rod bearings on #5 and #6. After that discovery and obtaining the title I decided to chuck the 305 and swap in a 350.
02-28-2013, 10:37 PM
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Car: 89 Black IROC-Z convertible
Engine: 305 TBI
Transmission: Auto
Re: Junkyard 89 IROC build
What a cool deal. I love restoration threads. I'm excited to see this one back on the road. Good Luck!
02-28-2013, 10:42 PM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
I picked up a 350 2 piece rms shortblock off a friend for $200. I tore it down and began the rebuild. I used the stock rods and pistons with a new scat crank, all new bearings and rings, New oil pump and pan. I chose a Lunati Voodoo cam 456/468 lift 213/219 duration 112 degree lobe seperation, and a double roller timing set.
02-28-2013, 10:48 PM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
So on to the top end. I found a set of 113 vette heads fresh from the machine shop with a fresh valve job for $550. I decided to cut the rough cast off and polish them out. ( Took FOREVER! ) I picked up some 1.5 ratio comp ultra golds, comp hardened guide plates, and some comp hardened 3/8 pushrods.
Last edited by jas2730; 02-28-2013 at 10:53 PM.
02-28-2013, 11:05 PM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
I then ordered some SLP runners and tried my hand at a little porting.
SAM_1741_zpsccc5395a.jpg?t=1362020104
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02-28-2013, 11:10 PM
#8
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
I also picked up a 4 bolt main 350 roller block and a Detroit Locker. Also picked up this bolt on.
02-28-2013, 11:15 PM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
2 weeks ago I got a steal on a HSR so all the hard work porting and painting was a waste but i'm not complaining.
SAM_1717.jpg?t=1359499231
1 week later I stole a polished HSR!
SAM_1735_zpsd4aea4a0.jpg?t=1362016939
SAM_1717.jpg?t=1359499231
1 week later I stole a polished HSR!
SAM_1735_zpsd4aea4a0.jpg?t=1362016939
02-28-2013, 11:27 PM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
I got a grille, blower motor, steering box, rag joint, and some wheels to roll around on.
02-28-2013, 11:40 PM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
Just gathered the last couple pieces to complete the engine. I purchased all the plumbing for the HSR, new flexplate, and a complete Accel 300+ ignition setup. Still searching for headers.
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SAM_1753_zps9613f3fe.jpg?t=1362102484
02-28-2013, 11:50 PM
#12
03-01-2013, 08:59 AM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
With this combo i'm somwhere around 10:1 compression give or take a little. I'm hoping for 350+ whp and 400+ tq. What's your opinion? Think i'm in the ballpark?
03-01-2013, 11:48 AM
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03-01-2013, 12:15 PM
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Car: 1987 T/A WS6 T-Tops/92 RS
Engine: LB9/3.1
Transmission: 700R4/700R4
Axle/Gears: 2.73/3.23
Re: Junkyard 89 IROC build
keep up the good work man, so you also got the Vert as well? You are a man of many projects.
03-01-2013, 01:00 PM
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Car: 1990 Trans Am
Engine: 5.7 350 HSR afr195 xfi268
Transmission: T5
Axle/Gears: 3.08 posi
Re: Junkyard 89 IROC build
suscribed!!!! im glad to see the hsr peices ill be needing ... impressive work!!!! just ordered mine yesterday
03-01-2013, 02:09 PM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
My wife isn't jumping for joy over my projects but she let's me enjoy my hobby. I guess she figures that i'm not out drinking, cheating, and that kinda stuff so she can live with my car obsession.
03-01-2013, 03:11 PM
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Car: 85 camaro z28
Engine: 355
Transmission: t-5
Axle/Gears: 3.73
Re: Junkyard 89 IROC build
I may anger people saying this (impressive work by the way) but what's the purpose of owning more than one thirdgen camaro? I could see myself getting bored restoring one after the next.
03-01-2013, 03:33 PM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
It's a love thing. These cars may not be for everyone but IROCs are what I drooled over as a kid.
03-01-2013, 09:26 PM
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Car: 1985 Camaro Iroc-Z
Engine: Currently Deciding
Transmission: TH350 Built
Axle/Gears: 3.73 POSI
Re: Junkyard 89 IROC build
Awesome build man, hope my car will be this nice someday, especially the motor.
03-01-2013, 10:09 PM
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Car: 91Z28
Engine: 5.7 ls1
Transmission: 4l60e
Axle/Gears: 3.42
Re: Junkyard 89 IROC build
Damn! lots of work you have done with your car!
keep updating this thread im for sure gonna keep checking it out
keep updating this thread im for sure gonna keep checking it out
03-01-2013, 11:36 PM
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Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: Junkyard 89 IROC build
Awesome! Very happy you saved it from the crusher. Looks like it's coming along perfect too.
03-02-2013, 12:02 AM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
No. I was stone walled at every attempt going through the system. I was finally told there wasn't anything that could be done. At that point I had given up and started pulling the interior for my 82. That's when under the back seat I found prescription paper work for a yeast infection for the previous owners girlfriend with her name and address on it. Called and offered them some cash to get me the title. 
03-02-2013, 12:13 AM
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Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: Junkyard 89 IROC build
No. I was stone walled at every attempt going through the system. I was finally told there wasn't anything that could be done. At that point I had given up and started pulling the interior for my 82. That's when under the back seat I found prescription paper work for a yeast infection for the previous owners girlfriend with her name and address on it. Called and offered them some cash to get me the title.
03-04-2013, 01:15 PM
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Car: 1987 T/A WS6 T-Tops/92 RS
Engine: LB9/3.1
Transmission: 700R4/700R4
Axle/Gears: 2.73/3.23
Re: Junkyard 89 IROC build
Was she itching to get the cash LOL! Neat story none the less.
03-04-2013, 10:28 PM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
Had to swing at that fastball didn't you?
On another note I picked up a complete disc to disc 4th gen rear with 3:42 posi today for a $100.
http://s1055.beta.photobucket.com/us...03764848676132
On another note I picked up a complete disc to disc 4th gen rear with 3:42 posi today for a $100.
http://s1055.beta.photobucket.com/us...03764848676132
03-05-2013, 07:37 AM
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Car: 1987 T/A WS6 T-Tops/92 RS
Engine: LB9/3.1
Transmission: 700R4/700R4
Axle/Gears: 2.73/3.23
Re: Junkyard 89 IROC build
Had to swing at that fastball didn't you?
On another note I picked up a complete disc to disc 4th gen rear with 3:42 posi today for a $100.
http://s1055.beta.photobucket.com/us...03764848676132
On another note I picked up a complete disc to disc 4th gen rear with 3:42 posi today for a $100.
http://s1055.beta.photobucket.com/us...03764848676132
03-05-2013, 08:12 AM
#38
Re: Junkyard 89 IROC build
WOW, what a save. Too nice of a car to be scrapped. Glad to hear you got the title. I stopped being surprised of what cars people will scrap a long time ago. To some or dare I say most people, their car is nothing more than a disposable appliance. This is refreshing to see this car saved. I'll be watching.
03-05-2013, 10:41 AM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
WOW, what a save. Too nice of a car to be scrapped. Glad to hear you got the title. I stopped being surprised of what cars people will scrap a long time ago. To some or dare I say most people, their car is nothing more than a disposable appliance. This is refreshing to see this car saved. I'll be watching.
03-05-2013, 02:37 PM
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Car: 1987 T/A WS6 T-Tops/92 RS
Engine: LB9/3.1
Transmission: 700R4/700R4
Axle/Gears: 2.73/3.23
Re: Junkyard 89 IROC build
I was going to say. I know if I do find parts on the local CL the sellers are on crack. I have got some good priced body items at a few of the local Pull A Parts, but that's about it. Around here part and or cars sell stupid high so finding a great deal is not common.
03-07-2013, 08:48 PM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
Since photobucket updated their site I can no longer copy and paste images from there to here. Does anyone know of another way to do this?
03-07-2013, 09:23 PM
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
Pic of the interior. I need to find a better steering wheel. The steering wheel out of the 82 was pretty rough.
03-07-2013, 09:27 PM
#49
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Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Junkyard 89 IROC build
Tomorrow i'll be installing a new brake booster, plumbing for the HSR, and if time pemits, i'll start wiring the ignition.