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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).
This engine was identical to the 425 hp (317 kW) L72 427 (first introduced in 1966), but was fitted with 3×2-barrel Holley carburetors, [31] known as "Tri-Power," in lieu of the L72's single 4-barrel carburetor. Both engines used the same high-lift, long-duration, high-overlap camshaft and large-port, cast-iron heads to maximize cylinder head ...
Between 1966 and 1969 the L78 was the highest-horsepower engine available in Chevrolet's intermediate line via a Regular Production Option (RPO). Despite this, in 1969 an L72 427 cu in (7.0 L), 425 hp (317 kW) engine could be ordered in an intermediate via a Central Office Production Order (COPO).
Requests from dealers (notably Don Yenko in PA, Baldwin-Motion in NY, Nickey in IL and Dana in CA) who had been dealer-installing 427 cu in (7.0 L) engines in the Camaro prompted Chevrolet to use an ordering process usually used on fleet and special orders (taxis, trucks, etc.) to offer 427 engines in the Camaro. Two Central Office Production ...
3. 1966 Shelby Cobra 427 ‘Super Snake’ – $5.5 Million ... 4. 1967 Chevrolet Corvette L88 – $3.85 Million. ... it features a 7.0-liter 427 V8 engine, underrated at 430 horsepower but ...
The all-new 1965 Biscayne was larger yet, and offered an even wider range of engines, including a new, larger 250-ci inline-six. For the 1967 model year the smaller 230 was dropped. For 1966 the top engine became the new Big-Block 427 ci V8, available in a high-powered, high-revving 425 hp (317 kW) version with solid lifters. Although not ...