POWER AND DURABILITY-The LS1 has many refined features that contribute to the overall power of the engine. One of the most notable of these features is the 10:1 compression ratio, which helps maximize LS1's power output. Also, friction-reducing cast-steel roller rocker arms add stiffness to the valvetrain structure, enabling higher engine speeds. The intake manifold is made of a new lightweight composite material that saves weight and helps air flow more smoothly into the engine, resulting in enhanced performance. The hydraulic roller valve lifters minimize friction for long-lasting durability, and help prevent internal power loss.
NOISE AND VIBRATION REDUCTION-This important engine attribute is enhanced in part by a new accessory drive system. The use of direct-mount accessories and the elimination of fasteners and attachment holes contribute to overall noise and vibration reduction. LS1's hollow-camshaft design also helps reduce noise and vibration.
EMISSIONS-Several features help reduce engine emissions in the LS1. The "coil near plug" ignition system produces high ignition energy, which results in increased combustion and better emissions. The dual-wall air-gap exhaust manifold improves catalytic converter light-off, which helps lower emissions. Also, a sophisticated Sequential Fuel Injection (SFI) system helps make the LS1 emissions-compliant for years to come. Overall, the new LS1 small block features a long list of improvements and new features that fifth-generation Corvette owners will appreciate. These improvements are all designed with one goal in mind: to provide the Corvette owner with world-class sports car performance. With the time-proven small block V8 design to build on, the LS1 is clearly the most technologically advanced pushrod V8 engine GM has ever produced, and is definitely up to the task of powering the legendary Corvette.
Indy
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