Chevrolet Camaro IROC-Z
The third-generation Camaro was a quantum leap over the aging second-gen it replaced. Built on GM's new F-body platform, the 1982 Camaro was lighter, stiffer, more aerodynamic, and better-handling than anything Chevrolet had offered in the nameplate before. And the IROC-Z, introduced in 1985, was its ultimate street expression.
The IROC-Z took its name from the International Race of Champions, a spec-racing series using identically prepared Camaros. The road car package included the L98 5.7-liter Tuned Port Injection V8 (from 1987), performance-tuned suspension with specific spring rates, 16-inch aluminum wheels, wider tires, and a ground-effects body kit that gave the car a purposeful, hunkered-down stance.
The TPI system was the key to the IROC-Z's character. Unlike the carburetor-fed V8s that preceded it, the TPI engine delivered smooth, progressive power from idle to redline. It was tractable in city traffic, returned reasonable fuel economy, and still delivered enough punch to run mid-14s in the quarter-mile — genuine performance by 1980s standards.
The third-gen Camaro's chassis was its secret weapon. The torque-arm rear suspension eliminated the live-axle hop that plagued older Camaros, and the MacPherson strut front end provided better steering feel and higher cornering limits. With the IROC-Z's performance suspension, the car could pull over 0.85g on the skidpad — territory that had previously been reserved for purpose-built sports cars.
The IROC-Z became an icon of 1980s American car culture, featured in countless movies, TV shows, and music videos. Its combination of aggressive styling, responsive V8 power, and reasonable pricing made it the aspirational performance car for a generation.
The IROC-Z nameplate lasted from 1985 through 1990, when licensing rights expired. The 1991-92 models continued with the Z28 designation. The 1989 Turbo IROC-Z with the 3.8L turbocharged V6 and the 1LE racing package cars are the most collectible third-gen variants.
Third-gen Camaros are affordable and plentiful — an excellent entry into classic Camaro ownership. Look for the TPI V8 (1987+), which is more powerful and reliable than the earlier carbureted engines. Check for unibody rust, particularly in the subframe connectors, rocker panels, and rear hatch area. T-top cars are common but check the seals carefully. The 700R4 automatic transmission is the weak link — listen for slipping and harsh shifts. The 1LE package cars are the hidden gems of this generation.
The third-gen Camaro was produced from 1982-1992 across two factories. The IROC-Z nameplate was used 1985-1990. The 1LE racing package (1988-92) is the most collectible third-gen variant — these purpose-built SCCA Showroom Stock racers were produced in very small numbers. The B4C police package Camaros are also sought after.