| COPO 9737 Sports Car Conversion Package. COPO 9561 427/425 HP L72 V-8 engine. High lift cam, solid lifters. Winters high rise manifold. 800 CFM Holley carburetor. M21 4-speed manual transmission. BE-code 4.10 Positraction differential. Heavy duty suspension with 13/16 inch front stabilizer bar. Power steering. Power brakes with front discs. Finished in Rally Green with black vinyl top. As a Double COPO, this Yenko Camaro incorporates the COPO 9737 Sports Car Conversion Package, which contributed power brakes with front discs, a 13/16-inch front sway bar, a heavy-duty Code BE 4.10 Positraction differential and a 140 MPH speedometer. |
| One of 201 famously ordered by Canonsburg, Pennsylvania, Chevrolet dealer and racer Don Yenko through GM’s Central Office Production Order (COPO) program. The Yenko Super Camaro was factory equipped with the 1966 Corvette L72 Mark IV V-8 engine, which incorporated a forged rotating assembly, 11.0:1 compression, a high-lift, high-duration, solid-lifter camshaft, high-flow cylinder heads and a Holley 800 CFM 4-barrel carburetor on a Winters high-rise aluminum intake manifold. | 
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| Official rating of 425 HP at 5,600 RPM was likely closer to 450 HP at 6,400 RPM. The car made $363k, beating its estimate at Mecum. |
