What is the displacement in liters of the 454 cubic inch Chevrolet V8?

The displacement of a 454 cubic inch Chevrolet V8 is approximately 7.4 liters.

The 454 designation refers to the engine’s displacement in cubic inches, not its horsepower or a precise metric measurement. Converting 454 cubic inches using 1 cubic inch equals 16.387 cubic centimeters gives about 7,439 cubic centimeters, or 7.439 liters. Automotive specifications conventionally round that figure to 7.4 liters.

Chevrolet’s 454 was part of the Mark IV big-block V8 family and was introduced for the 1970 model year. It powered notable performance cars including the Chevrolet Chevelle SS, Corvette, Monte Carlo, and El Camino. Different versions, such as the LS5 and LS6, had different compression ratios, induction systems, and power ratings despite sharing the 454 displacement.

The metric name can also create confusion with later truck engines. Chevrolet’s Vortec 7400 was essentially a later-generation 454-related big-block and used the rounded 7.4-liter designation. By contrast, the later Vortec 8100 displaced 8.1 liters and was not a 454.