The Chevy LS6 Engine
The 5.7-litre LS6 builds on the inherent strengths of the Corvette's LS1 engine, but benefits from a higher-lift camshaft and higher-compression pistons to raise horsepower from 350 to 405, and torque from 340 lb.-ft. to 400 lb.-ft. Such tremendous power is produced through the use of hollow-stem valves, a more aggressive camshaft, improved intake and higher-rate valve springs.
Corvette Z06 performance straight out of the crate!
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Nothing says performance like engine code LS6! Producing more than 400 horsepower, the LS6 transformed the Corvette Z06 into a world-beating sports car.
GM Performance Parts now offers this ultimate small-block performer in a complete crate engine package – just the extra muscle your Corvette or F-car road racer needs to sweep off the competition.
Popular engines for TVR, Ultima, GDT70 and Cobra replicas - excellent power and reliability. |
GM Performance Parts delivers the LS6 as an all-inclusive assembly, complete with Corvette-style aluminium oil pan, large-volume composite intake manifold with single-bore throttle body, and high-performance log-style exhaust manifolds.
The LS6 is also a great choice for older cars and street rods whose owners are looking for high-tech performance and fuel-injected dependability!
Technical Specifications & Power Output
| Block type |
Cast aluminium, 6-bolt cross-bolted main caps |
| Displacement |
346 (5.7L) |
| Bore x stroke |
3.90 x 3.62 (99 x 92 mm) |
| Cam type |
Hydraulic roller |
| Cam duration .050 in |
204 degree intake / 211 degree exhaust |
| Cam lift |
.525 intake / .525 exhaust |
| Rocker arm ratio |
1.7:1 |
| Valve size |
2.00 intake / 1.55 exhaust |
| Compression ratio |
10.5:1 |
| Crankshaft |
Nodular iron |
| Pistons |
Hypereutectic aluminium |
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