Jan 18, 2021 · These are bone-basic beasts whose only job is to either run a quarter-mile faster than the other guy, or make easy money by street racing after the sun goes down. Under the hood, an L72 427-CI engine that made scads of power.

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).

Mar 13, 2008 · This new national legislation- combined with ultra-high-cost performance car insurance woes-made Don Yenko counter with the '70 LT1/Z28 350-powered Yenko Deuce Nova.

Jul 31, 2018 · This super rare unconverted 1969 Yenko Nova has all the pr-requisites for the Super Car Program but is the only one equipped with an automatic transmission.

Jun 25, 2019 · The 427-inch L72 engines were power rated by GM at 425 hp at 5,000 rpm and 460 lb-ft of torque at 4,000 rpm. Once these engines were "Yenko tuned," they made more like 450 hp.

Dec 11, 2003 · An L72- or L88-powered 427 Camaro on NHRA property quickly went into the Modified Production or Gasser ranks in those days.

Jun 1, 2023 · Meeting with the Chevrolet executives that had aided him in his Camaro and Chevelle projects, Yenko pitched the idea of putting the same 425 horsepower L72 427 cubic-inch V8 that powered those cars into the forthcoming, largely unchanged 1969 Nova SS.

Yenko replaced the motor with a 11.0:1 compression L72 427/450 HP engine, resulting in a car capable of sub-11 second quarter mile times. One was track tested with a zero-to-sixty time of 5.1 seconds.

Mar 30, 2011 · For example, with a 1969 Chevelle, COPO #9562 designated that the car be built with a 427cui, 425hp L72 engine. This option was not available to mere mortals, who could only get a 396cui, 375 hp L78 engine at most.

Yenko devised a program that took the standard 396/375 JH V8 engine and transformed it into an L72 by fitting a 427 block with the existing cylinder heads, carburetor, intake manifold and distributor from the 396. With mild tuning, Yenko effectively made a …