Under the hood of the ZR-1 lay not a typical single-overhead-cam V8 but a dual-overhead-cam ... and his ZR-1 was his fourth C4 Corvette. However, marriage, a busy life, and older age meant ...

The C4 version of the Corvette ZR-1 is an underrated supercar. Looking like a standard Corvette, its heart is a Lotus-designed 32-valve dual overhead cam V8 producing 375 horsepower. Extremely ...

This year, Chevy has introduced the latest in the line, the 2025 Corvette ZR1 and ... being double-overhead-cam, also referred to as "twin cam." The C4 ZR-1 needed major surgery to beat the ...