Chevy LS-Series Small-Block V-8 LS3 6.2L – Gen IV Small-Block V8 - 19434636

A Contemporary Classic

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. The Camaro F-body oil pan may not suit all installation applications. Use a vehicle-specific oil pan for original LS-powered vehicles or Chevrolet Performance’s Muscle Car Oil Pan Kit P/N 19212593 for older vehicles.

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 Camaro F-body oil pan
• Not intended for marine applications
• Front-End Accessory Drive Kits are available in several configurations
• Does not include exhaust manifolds or flexplate/flywheel

Technical Specifications

Part Number: 19434636
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 92mm)
Block (P/N 12623967 ): Cast aluminum with 6-bolt, cross-bolted main caps
Crankshaft (P/N 19431872 ): 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 12675871 ): 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 12696105 int ): Investment-cast, roller trunnion
Rocker Arms (P/N 12681275 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