1970 Chevrolet Chevelle

1970 Chevrolet Chevelle SS 454 â?" LS5 Big Block, F-41 Suspension, Clean Undercarriage Why This Car Is Special The 1970 Chevrolet Chevelle SS 454 stands at the top of the muscle car hierarchy for one simple reason: it was the most powerful production Chevelle ever built. Chevrolet introduced the 454 cubic inch big block for the 1970 model year specifically to answer the demand for more displacement, and the result was a car that Car and Driver clocked in the mid-13-second range in the quarter mile right off the showroom floor. The SS package in 1970 was not just a badge â?" it was a separate option that brought a specific suspension tune, unique exterior trim, and engine choices that no other Chevelle buyer could order.