GM LS3 6.2L V8 430HP Motor

430 HP @5900 RPM

As the standard engine in the fifth-generation Camaro SS and C6 Corvette, the high-revving, deep-breathing LS3 6.2L is poised to go down in history as one of Chevrolet’s best and most versatile engines.

It’s no surprise that enthusiasts and builders have made it one of the most popular LS swap engines.

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 complements the LS3’s tremendous airflow capability and enhances its broad torque curve. Out-of-the-crate horsepower is 430, with an impressive 567 Nm.

Engine Type: LS-Series Gen-IV Small-Block V-8

Displacement (cu. in.): 376 (6.2L)

Bore x Stroke (in.): 4.065 x 3.622 (103.25 x 92 mm)

Block (P/N 12623967): Cast-aluminum with six-bolt, cross-bolted main caps

Crankshaft (P/N 12597569): Nodular iron

Connecting Rods (P/N 12607475): Powdered metal

Pistons (P/N 19207287): Hypereutectic aluminum

Camshaft Type (P/N 12603844): Hydraulic roller

Valve Lift (in.): .551 intake / .522 exhaust

Camshaft Duration (@.050 in.): 204° intake / 211° exhaust

Cylinder Heads (P/N 12629063): Aluminum L92-style port; “as cast” with 68-cc chambers.

Valve Size (in.): 2.165 intake / 1.590 exhaust

Compression Ratio: 10.7:1

Rocker Arms (P/N 12569167 int): Investment-cast, roller trunnion

Rocker Arms (P/N 10214664 exh): Investment-cast, roller trunnion

Rocker Arm Ratio: 1.7:1

Recommended Fuel: Premium pump

Maximum Recommended rpm: 6600

Reluctor Wheel: 58X

Balanced: Internal