The Chevrolet Chevelle SS represented Chevrolet's entry into the hot midsize muscle car battle. The Chevelle SS was the high performance version of Chevrolet's Chevelle, and had its own line of engines and performance equipment. At first caught napping with just a 327 V8, the Chevelle SS would soon sport powerful 396 V8s and eventually the most powerful rated engine in muscle car history, the LS6 454 in 1970. The Chevelle, along with the Pontiac GTO, remains one of the most popular cars from this era and with good reason. Its strong performance at a reasonable price made it popular on the street and at the track.
1970 saw the introduction of the most powerful Chevelle SS of all time. Responding to the lifting of GM's ban on engines larger than 400 cid in midsize cars, Chevrolet responded by dropping in a new 454 cubic engine into its Chevelle SS. The top engine choice was the LS6 version with 450bhp. No production engine ever had a higher factory horsepower rating. Optional was a new cowl-induction hood, which had a rear facing flapper near the base of the windshield to feed air into the engine.
Performance: LS6 454/450: 0-60 in 6.1 sec, 1/4 mile in 13.7 sec @ 103mph - straight off the lot: incredible considering the horrible tires of the time.
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