1985 General Specifications and Facts
| Total Produced (RPO B4Z) |
21,177 |
Dealership Sticker Price (Base) |
$15,800 |
The IROC (International Race Of Champions) began using the Camaro as the official vehicle. To commemorate this, Chevy made an IROC model for the Camaro. The IROC-Z was option B4Z on the option sheet and could only be ordered with the Z28 option package. The ride height was lower than a standard Z28, and featured performance-calibrated front struts and springs, Bilstein rear shocks and 16 inch aluminum wheels with Goodyear Eagle 245/50/16 tires. This new performance icon boasted skidpad numbers within the range of .90 g. The top offering under the hood was the brand new TPI 305 which boasted 215 horsepower and 275 ft/lbs of torque. This was the most powerful 305 automatic ever offered in the IROC. The 190 horsepower HO 4bbl 305 and the standard output 155 horse LG4 were the other available motors.
The IROC also came with a redesigned front fascia with a more rounded appearance and a deeper chin spoiler with lower ground effects. The new fake hood louvers were introduced on the Z28 and IROC. The IROC was available in Yellow, Bright Blue Metallic, Black, Silver Metalic and Red.