Matchbox '71 Chevy Chevelle Convertible

The Chevrolet Chevelle was a mid-sized automobile from Chevrolet debuting in 1964. It was produced from 1964 through 1977 and was one of General Motors' most successful cars. Chevelle models ranged from economical family cars to powerful coupes and convertibles.

For 1971, the base Chevelle SS engine was a two-barrel 350-cubic-inch V8 rated at 245 gross (165 net) horsepower and optionally available was a four-barrel carbureted version of the 350 V8 rated at 275 gross (200 net) horsepower. The big block engines of previous years were now extra-cost options including the 402 V8 rated at 300 gross (270 net) horsepower; and LS-5 454 V8 with 365 gross and 285 net horsepower. Chevrolet specifications for 1971 included both "gross" and "net" horsepower figures for all engines to ease the transition to 1972 and later years, when Chevy and other manufacturers only listed the "net" horsepower ratings.

In mid-1971 and continued through 1972, the base Chevelle Sport Coupe was offered as the "Heavy Chevy" model featuring special striping and other appearance items. The "Heavy Chevy" was available with any V8 engine offered in the Chevelle roster ranging from the 307 two-barrel to the 402 four-barrel. However, the 454 big-block was only offered with the "SS" package and not available with the "Heavy Chevy" option.