The IROC-Z could be had with either the 5.0L LB9 305 V8 (shown here) or the 5.7L L98 from the Corvette. Unfortunately, the L98 was only available with an automatic transmission. Horsepower of the 5.0L was dependent on the axle ratio chosen (this car has the GU4 code 3.08 axle). A 3.45 axle was available, bumping power to 230hp
Checking the “IROC-Z” option added the IROC 16″ aluminum wheels w/ Eagle GT tires, bespoke leather-wrapped steering wheel, Ride and Handling package, black hood louvers, black headlight surround, black “Camaro” lettering, dual fog lights, and IROC badges/decals
“IROC” stands for the “International Race of Champions” – a race where the top drivers from Indy Car, NASCAR Winston Cup, NASCAR Busch, World of Outlaws, etc meet together and compete in identical cars to see who is the best driver
When it began in 1973, the car of choice was the Porsche Carrera RSR. Due to its high running costs, the RSR didn’t sit well with the series, so in 1975 IROC switched over to the more budget-friendly Camaro. The Camaro partnership would last for years
IROC had a brief 4-year hiatus after 1980, but when they came back in 1984, Chevrolet commemorated the return with the IROC-Z28 Camaro (IROC-Z). It would last until 1990 when Chevrolet decided not to renew their IROC contract, allowing the Dodge Daytona to take over as the Camaro’s replacement in the racing series
Terminating the contract meant Chevrolet could no longer use the IROC name, and this required a revision of the Camaro lineup. The 1990 model year was forced to terminate early, making way for the new ’91 Camaros in March 1990. This is when the “IROC-Z” name was dropped, going forward simply as “Z28” instead
Key Model Year Changes:
New performance exhaust system for both the LB9 5.0L and L98 5.7L V8’s
New “progressive” throttle
First year of the PASS-key theft deterrent ignition system
Rear seatbelts are now 3 point (lap/shoulder)
New optional Delco Digital CD player
First year of Tuned Port Injection (TPI)
In 1991, the “Z28” name replaces “IROC-Z”. The front bumper is now redesigned. The center 3rd brake light is now mounted inside underneath the rear glass. Other changes include new 16×8 wheels and new rocker moldings. Many options are now standard, such as power steering, power brakes, sport mirrors, etc
58k original miles
White over Red
New A/C compressor
Nice solid car, ready to enjoy
CONTACT SELLER – Update: Seller’s Craigslist ad has been deleted (sold or removed from market)
*SAE rated from factory. May not reflect current output.
*Performance numbers pulled from either the factory brochure or reputable automotive road tests.
*Base price when new does not reflect original MSRP of this particular car, nor does it reflect what the original owner paid for it.
*Advertised price at time of posting. Sellers can raise or lower prices on their original ad at any time. Click on the original ad to view current price/availability.
Mileage Disclaimer: NOC has not confirmed if the mileage stated by the seller is true and accurate. It is up to the buyer to verify these claims. Vehicle history reports, service records stating mileage, and even inspections of odometer tampering are recommended.