Chevrolet's LS1 and LS4 engines are third- and fourth-generation small-block, large-displacement engines that were mainly installed in high-performance vehicles. They feature aluminum blocks to reduce weight and a racing-inspired design to create more horsepower.
LS Engine Series
Introduced in 1997, when the LS1 was first offered in Corvette, Camaro, Firebird and GTO models in the United States, the LS engine series also includes the LS2, LS3/L99, LS4, LS6, LS7, LS9 and LSA engines, which have displacements ranging from 5.3 to 7.0 liters.
A 5.7-liter, or 346-cubic-inch, engine, the LS1 was produced from 1997 to 2004 in the United States and into the 2005 model year in other countries, such as Australia. It produced 350 horsepower and 365 pound-feet of torque.
Available in the front-wheel drive Chevrolet Impala SS and the Pontiac Grand Prix GXP, the LS4 shared the same aluminum block as the LS1 and had modifications to allow it to be mounted transversely. A 5.3-liter engine, it produced 303 horsepower and 323 pound-feet of torque.
- Photo Credit new car engine with red trim image by Raxxillion from Fotolia.com
Comparison of LS1 and LT1 Engines
If the LT1 caused a stir when it was introduced in 1992, then 1997's LS1 was a tidal wave. Both of these...
Information on the LS1 Engine
The LS1 engine is a third-generation small-block V8 produced by General Motors. Small-block V8s have been produced by GM since 1955, but...
The Specifications of an LS1 Engine Torque
"LS1" is an internal engine code used by General Motors (GM) for its 5.7-liter V-8 engine. GM put this motor in the...
Power Specs for the 1995 454 Engine
The 1995 454 V8 powered several vehicles in the Chevrolet line, as well as many GMC trucks. It was the smallest in...
How to Gain Horsepower From an LS1 Engine
The LS1 engine is a 5.7L aluminum block V8 that was produced and designed by General Motors from 1997 to 2005. It...
1992 454 TBI Roller Engines: Factory Specifications
The 454 TBI was a high-performance engine produced by Chevrolet. In the early 1990s, the company featured the engine in their 454...
Which 454 Engines Were in Chevy One-Tons?
The Chevrolet 454-cubic-inch V-8 engine debuted near the end of the muscle car era in 1970. At its peak, the 454 was...
LS1 & LS3 Differences
The LS1 and LS3 are pushrod V-8 engines produced by General Motors. The LS1 was the first engine of the Generation III...
The History of the 454ci Engine
The Chevrolet 454-cubic-inch V-8 engine was part of the Mark IV big-block V-8s that competed against Chrysler's 426 Hemi for muscle car...
Specifications for the LS4 454 Engine
The LS4 is a performance-focused eight-cylinder motor produced by General Motors and is used, as of 2010, in cars such as the...
1974 GM Big Block Specs
General Motors developed a line of large V-8 engines referred to as "big blocks" because they replaced a series of relatively smaller...
Specifications for the 1988 454 RV Engine
Manufactured by Chevrolet, the 454-cubic-inch big-block V-8 is a workhorse used in a multitude of applications. The reliability and high torque made...