As one of the newest members of the LS engine family, the LS3 6.2L
engine has benefited from all of the forward-thinking technology that has
kept this engine series at the forefront of modern performance. It was
introduced on the 2007 Corvette and debuts in 2009 in the all-new Camaro.
The GM Performance Parts LS3 6.2L crate engine is based on the Corvette
application, including the oil pan. It comes complete with the ignition system,
manifold assembly with injectors and throttle body, exhaust manifolds, water
pump, balancer and 14-inch automatic-transmission flexplate.
Inside, the LS3 is filled with components designed for high performance
and longevity. The aluminum block is filled with a sturdy reciprocating
assembly that combines with L92-type rectangular-port heads to deliver
a 10.7:1 compression ratio. A high-lift, hydraulic roller camshaft delivers a
whopping 0.551-inch of lift on the 2.165-inch intake valves and 0.522-inch lift
on the 1.59-inch exhaust valves. It holds those valves open for 204-degrees
of rotation (intake) and 211-degrees (exhaust), respectively, enhancing the
LS3’s tremendous airflow and table-flat torque curve.
