When GM lifted its displacement ban on midsize cars, Pontiac, Oldsmobile, and Buick responded with 455-cid engines with up to 370 bhp. Chevy\'s retort was a 454-cid V-8 that started at 360 bhp and ended at a barbaric 450. This was the muscle car summit.
The wrapper was a restyled Chevelle that again presented the Super Sport as an option package for hardtops and convertibles. It came with a 350-bhp 402-cid V-8, power front discs, F41 suspension, Polyglas F70x14s, and a domed hood.
The SS Chevelle had a handsome new dash, and on the road exhibited far more poise than its weight and size would suggest. But the LS6 engine made it a superstar. But the LS6\'s thunder also seemed to signal an approaching storm, one that would dampen muscle for years to come. Testers sensed it. "Without even raising the specters of insurance and social justice," said Car Life after an LS6 experience, "it\'s fair to say that the Supercar as we know it may have gone as far as it\'s going."