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Jay Leno in a video has declared it "the bible for Yenko Stinger owners". When Camaros , classifiable as a " pony car ", became available in 1967, Yenko transferred Chevrolet 's 427 cubic inch (7 L), 425 hp (317 kW) L-72 engine (along with other high-performance parts) into some Camaros, creating the Yenko Camaro .
At the time, the largest engine installed in Chevelle SSs was the 396 V8. Yenko used the Central Office Production Order system, which usually filled special-equipment fleet orders, to create a special COPO 9562 that included the L72 427 cu in (7.0 L) with a single, four-barrel 800 CFM Holley carburetor that produced 425 bhp (431 PS; 317 kW) at ...
Yenko ordered L78 equipped SS Camaros and swapped in the Chevrolet Corvette's L72 427 in³ (7.0 L) V8. The cars came with a 4.10 rear end and heavy-duty suspension. The approximate number of cars produced is 54. Yenko also installed a fiberglass replacement hood similar to the "Stinger" hood featured on 1967 big-block Corvettes.
Yenko ordered 201 of these cars to convert them into Yenko Camaros. [27] Other dealers also became aware of the L72 engine package. Around 1,000 Camaros were fitted with the L72 engine option. [28] [29] The COPO 9560 used an all-aluminum ZL1 designed specifically for drag racing, where weight savings were at an absolute premium.
The L72 was a 427 cu in (7.0 L) 90° overhead valve V8 big-block engine produced by Chevrolet between 1966 and 1969. Initially rated at 450 horsepower, the rating dropped to 425 hp (317 kW) shortly after its release (although there was no change in power).
One of his notable products was the ZL-1 engine, which he produced under permission from Chevrolet. In 1981, Yenko made his last modification, the Turbo Z Camaro. He added a turbocharger to 350 in 3 (5.7 L) engine. In addition to Chevrolet, Yenko dealerships included Porsche, Audi, Fiat, Honda, Subaru and Saab.
To counter this, Yenko requested a high-output Chevy 350cid V8 in his special line of Novas, the same engine that the new Z-28 Camaro and LT1 Corvette shared. Additionally, the new "Yenko Deuce", as it was known, had extensive suspension, transmission, and rear axle upgrades along with some very lively stripes, badges, and interior decals.
Beaumont was a make of mid-sized automobiles produced by General Motors of Canada from 1964 to 1969. These cars were based on the Chevrolet Chevelle, but the line had its own logo and nameplate, and was neither marketed nor actively sold in the United States.