The Impala was the inceptor of the SS ... Chevelle was doing the heavy lifting in the horsepower wars of the sixties, cubic-inching its way to the top of the food chain, where it arrived in 1970.

Powered by Chevrolet’s big-block 396 ... 1970 model year in particular (which historians regard as probably the greatest year for any muscle car, thanks in part to the awesome 454 Chevelle SS).

For 1970, the factory increased the bore of the 396 to give it 402-cu.in. displacement, but kept the SS 396 name. Chevy rated ...

a fresh new take on the classic 1970 Chevy Chevelle. The 70/SS comes in three distinct variants: Base, 396 Heritage, and 454 LS6X Limited Edition. The base model is powered by a 6.2L V8 LT1 ...