Chevrolet LS2 Engine Specs
Chevrolet
Chevrolet LS2 is a 6.0L (5967 cc) petrol engine with 390-400 HP, 530-542 Nm, 10.9:1 compression ratio. Fuel consumption: 12-15 L/100km. Typical service life: 300,000+ km.
Description
The Chevrolet LS2 is a naturally aspirated OHV V8 petrol engine produced from 2005 to 2009, representing a displacement-increased evolution of the original LS1 within GM's modern LS small-block family, used in the C6 Corvette, Pontiac GTO, Chevrolet SSR, TrailBlazer SS, and the Saab 9-7X Aero (a rebadged TrailBlazer built during GM's ownership of Saab).
Producing 390-400hp and 530-542Nm of torque from 5,967cc, the LS2 retains the LS1's fundamental deep-skirt aluminum block architecture and OHV 16-valve layout, with displacement increased through a larger bore and a compression ratio raised to 10.9:1, resulting in a meaningful power increase over the LS1 while retaining excellent low-end torque and the broad, flexible power delivery that defines the LS family's driving character. This combination made the LS2-powered C6 Corvette one of the best all-around performance value propositions of its era, offering genuine supercar-rivaling acceleration at a fraction of the price.
The LS2 shares the LS1's outstanding reputation for both durability and tuning headroom, with the factory bottom end proving robust enough to handle substantial power increases through forced induction or naturally aspirated modifications with appropriate supporting parts - one of the defining traits of the entire LS engine family that has made it enormously popular for engine swaps well beyond its original Corvette, GTO, and SSR applications. Maintenance considerations are broadly similar to the LS1: the factory intake manifold on some years can develop minor cracks with age, and general wear-item inspection (oil leaks from gaskets, timing chain condition) is worthwhile on higher-mileage examples. Given the LS2's use in a range of relatively low-production, now-collectible vehicles like the GTO and SSR, parts for engine-specific accessories or trim can occasionally be harder to source than for the core engine components themselves, which benefit from the same enormous LS-family aftermarket support that spans the entire GM lineup.