10. 1969 Chevrolet Camaro ZL1 427 (COPO)
Though the standard ZL1 featured a 302-ci small block, Chevrolet unleashed limited-run COPO Camaros equipped with the 427-ci L72 Big Block V8. Rated at 425 hp and 460 lb-ft of torque, the 7.0-liter monster sat behind a robust Muncie four-speed manual and rear-mounted “traction bars” to manage wheel hop.
The ZL1 COPO featured modest spoiler treatment and lightweight fiberglass hood with cowl induction, allowing the engine to breathe unfettered air. With just over 1,200 kilograms to haul, this Camaro shattered 0-60 mph in about 5.4 seconds and posted low-13-second quarter-mile times—distinguishing itself as GM’s answer to Ford’s Boss 429.