Southern Performance Systems

Performance Authorized Reseller

Chevrolet Performance LS3/430 Crate Engine

Starting with the '08 Corvette, the world was first introduced to GM's latest small block V8 creation – the 6.2-liter LS3. The LS3 kicks out 430 horsepower and 424 lb.-ft. of torque. It's a brute of a small block with 376 cubes at your beckon call. The LS3 consist of engineering breakthroughs like the revised Cylinder Heads featuring Rectangle Ports borrowed from the LS7. The Heads feature 63cc Combustion Chambers, 2.16-inch intake valves, and 1.59-inch exhaust valves. The camshaft features an aggressive .551-inches of lift on the intake side with less overlap (than the LS2) for even greater airflow and power. Rocker arms with a 1.7:1 ratio sit on top of the heads. In the bottom end, the aluminum 6-bolts/main block features 4.06-inch bores and 3.62-inch stroke. A nodular Iron Crankshaft, Powdered Metal Rods, and Aluminum Pistons (10.7:1 compression ratio) round out a rev-happy short block. The LS3 helps power the new Corvette to a top speed of 190 mph. What will it power you to?

$10,317.33

Part # 19435098

*Price Subject to Change without Notice*

**Price is Valid for Cash/Check Purchases Only**

All GM Performance Parts Crate Engines includes a 24-Month or 50,000 Mile Limited Warranty through GM Performance Parts.

Tech Specs
Part Number:19434636
Horse Power:430 hp @ 5,900 rpm
Torque:425 lb.-ft. @4,600 rpm
Engine Type:LS-Series Gen IV Small-Block V8
Displacement (cu in):376 (6.2L)
Bore X Stroke (in):4.065 x 3.622 (103.25 x 92mm)
Block:Cast aluminum with 6-bolt, cross-bolted main caps
Crankshaft:Nodular iron
Connecting Rods:Powder metal
Pistons:Hypereutectic aluminum
Camshaft Type:Hydraulic roller
Valve Lift (in):0.551 intake / 0.522 exhaust
Camshaft Duration (@ 0.050 in):204° intake / 211° exhaust
Cylinder Heads:Aluminum L92-style port, as cast with 68cc chambers
Valve Size (in):2.165 intake / 1.590 exhaust
Compression Ratio:10.7:1
Rocker Arms (intake):Investment-cast, roller trunnion
Rocker Arms (exhaust)Investment-cast, roller trunnion
Rocker Arm Ratio:1.7:1
Recommended Fuel:Premium unleaded
Maximum Recommended RPM:6,600
Reluctor Wheel:58x
Balanced:Internal