LS3 Engine
The LS3 Engine 6.2L Gen IV Crate Engine Assembly produces approx 436 horsepower and 428 ft./lbs of torque and comes with a composite intake manifold, electronically controlled 90-mm throttle body, fuel rail with injectors, balancer, exhaust manifolds, water pump and a 14-inch flexplate for automatic transmissions.

LS1, LS6,LS2, LS3, L99, LS4, LS7, LS9 And LSA Engine History - LS Engine And LSX History.