Everything You Want to Know About the 1972 Corvette, All in One Place.
Although its arrival was anticipated by consumers and critics alike, there were virtually no physical or mechanical changes made to the 1972 Corvette from the previous year. In fact, the most dramatic “changes” made to the current model year involved items that were no longer available to prospective owners when ordering a new Corvette.
To start, consumers could no longer order the optional ZR-2 package, due to General Motors elimination of the aluminum headed LS-6 from the Chevrolet engine lineup.
Previously, consumers looking to purchase a Corvette had had the option of including the 454 cubic inch big block LS-6 either on its own or as part of RPO ZR2, but because of incredibly poor sales numbers the previous year (only 188 Corvettes with the LS6 engine and a meager 12 Corvettes equipped with RPO ZR2 were sold), GM felt that the eradication of the engine was a necessity. To that end, only three engines were listed for the Corvette in 1972, which made it the smallest selection since the 1956 model.
All three – the base optional LT-1 small block, and the optional LS-5 big block – were all carry over engines from the 1971 model year, and each of these had more conservative power ratings than their 1971 predecessors.