1990 Iroc-z
Thread Starter
Junior Member
Joined: May 2003
Posts: 22
Likes: 0
From: Antelope Valley, CA
Engine: 5.7L 350
1990 Iroc-z
Selling the ROC for $ 6,300. Here's the info
Make: Chevrolet
Model: CAMARO IROC-Z
Year: 1990 (Final year for International Race Of Champions Z28)
Engine: L98 (5.7L Tuned Port Injection)
245hp & 345 ft lbs torque
Modifications: SLP 1 ¾ stainless steal headers, SLP runners, MSD 6A Ignition, TPIS airfoil, Hypertech 180º fans switch and thermostat, K&N air filters, METCO chrome breather, Billet Specialties 16lbs. radiator cap, Flowmaster 80 series, 3in cutout
Transmission: Stock 700-R4 with transmission cooler.
Interior: Stock seats, Custom IROC-Z floor mats, Custom IROC-Z billet pedals, R.Mc. White-face gauges, Jensen CD/ Cassette, Eclipse speakers.
Exterior: Stock Appearance. RPO code(90A)
Rims: Stock 16x8 IROC-Z. RPO code (N16)
Performance Codes: G92 package- 3.23 axle ratio, disc brakes (J65), Performance exhaust (N10)/dual cats, Engine oil cooler (KC4),
FE3 performance suspension (Koni Adjustable in rear)
Make: Chevrolet
Model: CAMARO IROC-Z
Year: 1990 (Final year for International Race Of Champions Z28)
Engine: L98 (5.7L Tuned Port Injection)
245hp & 345 ft lbs torque
Modifications: SLP 1 ¾ stainless steal headers, SLP runners, MSD 6A Ignition, TPIS airfoil, Hypertech 180º fans switch and thermostat, K&N air filters, METCO chrome breather, Billet Specialties 16lbs. radiator cap, Flowmaster 80 series, 3in cutout
Transmission: Stock 700-R4 with transmission cooler.
Interior: Stock seats, Custom IROC-Z floor mats, Custom IROC-Z billet pedals, R.Mc. White-face gauges, Jensen CD/ Cassette, Eclipse speakers.
Exterior: Stock Appearance. RPO code(90A)
Rims: Stock 16x8 IROC-Z. RPO code (N16)
Performance Codes: G92 package- 3.23 axle ratio, disc brakes (J65), Performance exhaust (N10)/dual cats, Engine oil cooler (KC4),
FE3 performance suspension (Koni Adjustable in rear)
Last edited by 90ROCz; Jun 7, 2004 at 12:28 AM.
Banned
Joined: May 2004
Posts: 1,340
Likes: 0
From: Orange, Calif
Car: '87 Cam RS V6
Engine: Top Secret
Transmission: DYT700R4 custom inerts and conv.
Re: 1990 Iroc-z
Originally posted by 90ROCz
Year: 1990 (Final year for International Race Of Champions Z28)
Year: 1990 (Final year for International Race Of Champions Z28)
Nice sounding car you have for sell though. Pictures would help greatly
Joined: Apr 2001
Posts: 2,364
Likes: 1
From: Beaumont, CA
Car: Moving...
Engine: Running...
Transmission: Shifting...
Re: Re: 1990 Iroc-z
Originally posted by vsixtoy
Pictures would help greatly
Pictures would help greatly
Senior Member
Joined: Oct 2002
Posts: 980
Likes: 0
From: Santa Ana CA
Car: 1991 GTA
Engine: 350 tPI
Transmission: 700r4
Axle/Gears: 342
Try cardomain.com for putting your pictures up, if you already have some scanned in. It takes a bit to set up but once you figured it out it's useful.
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Joined: Feb 2001
Posts: 656
Likes: 39
From: So. Cal
Car: '89 GTA, '15 Camaro LS 6sp.
Engine: L98, LFX.
Transmission: 4L60, AY6.
Axle/Gears: 3.27's.
How many miles are on the '90 Iroc-Z? 
CustomX,
When did they discontinue the 9-bolt? Mid-way through the '90MY or near the beginning? Just curious. I didn't know they still had them in '90.

CustomX,
When did they discontinue the 9-bolt? Mid-way through the '90MY or near the beginning? Just curious. I didn't know they still had them in '90.
Thread Starter
Junior Member
Joined: May 2003
Posts: 22
Likes: 0
From: Antelope Valley, CA
Engine: 5.7L 350
Originally posted by Mikos_89
How many miles are on the '90 Iroc-Z?
CustomX,
When did they discontinue the 9-bolt? Mid-way through the '90MY or near the beginning? Just curious. I didn't know they still had them in '90.
How many miles are on the '90 Iroc-Z?

CustomX,
When did they discontinue the 9-bolt? Mid-way through the '90MY or near the beginning? Just curious. I didn't know they still had them in '90.
Supreme Member
Joined: Sep 2001
Posts: 1,192
Likes: 2
From: Oklahoma city
Car: 90 irocz
Engine: 350tip
Transmission: 700r4
Originally posted by Mikos_89
How many miles are on the '90 Iroc-Z?
CustomX,
When did they discontinue the 9-bolt? Mid-way through the '90MY or near the beginning? Just curious. I didn't know they still had them in '90.
How many miles are on the '90 Iroc-Z?

CustomX,
When did they discontinue the 9-bolt? Mid-way through the '90MY or near the beginning? Just curious. I didn't know they still had them in '90.
Mine was built in september, and has the 9eq gear set (3.27) in the 9 bolt. But i know of a couple people off the site i co admin (www.iroczone.com) with a 90 and g92 on thier B2l's with 10bolts.
Thread Starter
Junior Member
Joined: May 2003
Posts: 22
Likes: 0
From: Antelope Valley, CA
Engine: 5.7L 350
Originally posted by CustomX
All i know is they discontinued them during part of the model year.
Mine was built in september, and has the 9eq gear set (3.27) in the 9 bolt. But i know of a couple people off the site i co admin (www.iroczone.com) with a 90 and g92 on thier B2l's with 10bolts.
All i know is they discontinued them during part of the model year.
Mine was built in september, and has the 9eq gear set (3.27) in the 9 bolt. But i know of a couple people off the site i co admin (www.iroczone.com) with a 90 and g92 on thier B2l's with 10bolts.
Are 3.27 much better or sligtly better than 3.23's?
Originally posted by 90ROCz
Yeah, I saw your ROC at Super chevy 2003. NICE
Are 3.27 much better or sligtly better than 3.23's?
Yeah, I saw your ROC at Super chevy 2003. NICE
Are 3.27 much better or sligtly better than 3.23's?
Supreme Member
Joined: Sep 2001
Posts: 1,192
Likes: 2
From: Oklahoma city
Car: 90 irocz
Engine: 350tip
Transmission: 700r4
very nice find!
sure 9 bolt is stronger but parts for it arnt as easy as opening up your jegs or summit catalogue. pluses and minuses
Just was taking a tally of when they switched over, so if you wouldnt mind , could you pm me your build number?
sure 9 bolt is stronger but parts for it arnt as easy as opening up your jegs or summit catalogue. pluses and minuses
Just was taking a tally of when they switched over, so if you wouldnt mind , could you pm me your build number? Thread Starter
Junior Member
Joined: May 2003
Posts: 22
Likes: 0
From: Antelope Valley, CA
Engine: 5.7L 350
Originally posted by CustomX
very nice find!
sure 9 bolt is stronger but parts for it arnt as easy as opening up your jegs or summit catalogue. pluses and minuses
Just was taking a tally of when they switched over, so if you wouldnt mind , could you pm me your build number?
very nice find!
sure 9 bolt is stronger but parts for it arnt as easy as opening up your jegs or summit catalogue. pluses and minuses
Just was taking a tally of when they switched over, so if you wouldnt mind , could you pm me your build number? No problem. Just tell me where I can find the build number and I'll PM u
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