1994 LT1 Engine Specifications

by Justin Cupler

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The Chevy LT-1 was released in 1992 as the second generation of small-block General Motors V8s. This version of the LT-1 lasted until 1997, when the LS-1 was introduced. In 1994, the LT-1 was a widely used engine. It was used through four manufacturers: Chevrolet, Pontiac, Cadillac and Buick. It was also use in many different types of cars including sports cars, sedans and even station wagons.

Chevrolet

Chevrolet made the most use of the LT-1 in 1994. It was used in the: Camaro Z28, Corvette, Impala SS and Caprice Wagon. This engine produced 275 horsepower, hp, and 325 foot-pounds of torque in the Camaro; 300 hp and 340 foot-pounds of torque in the Corvette; and 260 horsepower and 330 foot-pounds of torque in the Impala SS and Caprice Wagon. The LT-1 was internally the same in all Chevrolet models; it had a bore -- cylinder width -- of 4.00 inches and a stroke -- piston travels inside the cylinder -- of 3.48 inches. All of the Chevy model LT-1s had a 10.5:1 compression ratio. The economy ranged in the Chevy models, they all got 17 mpg in the city and 25 to 27 mpg on the highway.

Pontiac

Pontiac made use of the 5.7-liter LT-1 in both The Firebird Formula and the Trans Am. Both cars were essentially the same; just the name differed. This engine produced 275 hp and 325 foot-pounds of torque. It had a bore of 4 inches and a piston stroke of 3.48 inches. It had the same 10.5:1 compression as its Chevy counterpart. The LT-1, in 1994, got 17 mpg in the city and 25 to 27 mpg on the highway, depending on transmission selection.

Buick

Buick utilized the LT-1 for its full-sized sedan and station wagon, the Roadmaster. This engine was essentially identical to the one that the Caprice Wagon used, since they are on the same platform. It produced 260 hp and 330 foot-pounds of torque. It had a bore of 4 inches and a 3.48 inch piston stroke. The compression ratio was set at 10.5:1. The LT-1 pushed the Roadmaster to 17 mpg in the city and 25 mpg on the highway.

Cadillac

The Fleetwood was the only Cadillac in 1994 not to make use of the, still new, 4.6-liter Northstar engine. This vehicle used GMs 5.7 liter LT-1. This engine produced 260 hp and 330 foot-pounds of torque. It had a compression ratio of 10.5:1. The bore was 4 inches and the piston stroke was 3.48 inches. This vehicle got 17 mpg in the city and 25 mpg on the highway.

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