While they don’t quite get the love they deserve these days, the C4 Corvettes were at one time the tip of GM’s technological spear. The cars were a certified hit when they first came out and they were so good on the track that the SCCA banned them from regular competition, eventually forcing Corvette owners to race themselves in the Corvette Challenge racing series.
During the 13-year model run, GM offered various enhancements and upgrades to the motors, and eventually we would see the 1990 Corvette ZR1 with its DOHC 32-valve LT5 motor designed by Lotus that offered 375 horsepower in its first three years of production before maxing out at 405 horsepower in 1993-1995.
After the ZR1’s production run was completed in 1995, GM would bring another special Corvette engine to market which appeared in the 1996 Corvette Grand Sport and was optional on the 1996 Collector’s Edition. This one-year-only powerplant featured 330 horsepower thanks to a variety of upgrades including new aluminum heads, a revised camshaft, and higher compression levels.
Is the Corvette ZR1 the true King of the Hill or is the LT4 an underrated champ? Watch the comparison video below to find out!
Retro Cars Forever / YouTube