Destined to go down in history as one of Chevrolet’s most versatile performance engines, the 430-hp LS3 6.2L offers a fantastic combination of modern technology. The LS3 is filled with components designed for high performance and longevity, starting with a sturdy reciprocating assembly that’s matched with L92-type rectangular-port heads and a high-lift, hydraulic roller camshaft. It all optimizes the LS3’s tremendous airflow and supports a broad torque curve. Our LS3 crate engine comes complete, from the Camaro F-body oil pan to the ignition system. It also includes the intake manifold assembly with injectors and throttle body, water pump, balancer and 58X reluctor wheel.

Engine Type: LS-Series Gen IV Small-Block V-8 Displacement (cu in): 376 cu in (6.2L) Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm) Block (P/N 12623967): Cast-aluminum with 6-bolt, cross-bolted main caps Crankshaft (P/N 12597569): Nodular iron Connecting Rods (P/N 12649190): Powdered metal Pistons (P/N 19207287): Hypereutectic aluminum Camshaft Type (P/N 12623063): 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 68cc chambers Valve Size (in): 2.165 intake / 1.590 exhaust Compression Ratio: 10.7:1 Rocker Arms (P/N 12669995 int): Investment-cast, roller trunnion Rocker Arms (P/N 12669993 exh): Investment-cast, roller trunnion Rocker Arm Ratio: 1.7:1 Recommended Fuel: Premium pump Maximum Recommended rpm: 6,600 Reluctor Wheel: 58x Balanced: Internal INSTALLATION NOTES • Assembly does not include any electronics • Use LS3 Controller Kit, P/N 19354328 for engine operation. Kit includes electronic throttle pedal, which is required for throttle input to the ECU. • Includes Chevy F-Body wet sump oil pan • Intended for pre-1976 street vehicles or any off-road vehicle • Not intended for marine applications • Front-End Accessory Drive Kits are available in several configurations.