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This is one of the 69 '69 ZL1 aluminum 427 race-engine Camaros. With a 13.0:1 compression ratio, a full-race camshaft and a factory "chambered" exhaust (no mufflers), it sounds like nothing you have ever heard before. It should not be street-driven due to the big duration camshaft, high compression and low-speed overheating. The ZL1 COPO 9560 option cost $4,160. The base price of a '69 V-8 Camaro sport coupe was $2,727.