Is my 1970 Chevelle SS a Clone?
How to spot a genuine SS Chevelle / El Camino by: Daniel Carr (Part 3) In 1970, there were two different SS packages available. One was the “Z25″ SS-396 and the other was the “Z15″ SS-454. There were only two engine choices for the SS-396: the 350 and 375 horsepower versions. It was a confusing year for 396 buyers. The 396 engines now actually displaced 402 cubic inches, but were still called a “396″ when installed in an SS. There was also a new 330 horsepower “LS3″ big-block “400″ engine option available for the non-SS Malibu and El Camino Custom. To confuse things even further, there was a 400 cubic inch 2-bbl small-block available (only in the ‘70 Monte Carlo). The Malibu “400″ big-block was also actually a 402, and was basically an overbored version of the 325 horsepower 396 motor that had been available on the ‘68 and ‘69 SSs. The “Malibu 400″ package, produced from ‘70-’72 on the Chevelle and El Camino is fairly scarce today. The reason is that many of these big-block vehicles ha
