Crate Engine - 6.2L LS3 430HP Crate Engine - LS3 - 430 HP - GM LS-Series 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. TECH SPECSPart Number: 19432414 / 19434636Engine Type: LS-Series Gen IV Small-Block V-8Displacement (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 capsCrankshaft (P/N 12597569): Nodular ironConnecting Rods (P/N 12649190): Powdered metalPistons (P/N 19207287): Hypereutectic aluminumCamshaft Type (P/N 12623063): Hydraulic rollerValve Lift (in): .551 intake / .522 exhaustCamshaft Duration (@.050 in): 204° intake / 211° exhaustCylinder Heads (P/N 12629063): Aluminum L92-style port; as cast with 68cc chambersValve Size (in): 2.165 intake / 1.590 exhaustCompression Ratio: 10.7:1Rocker Arms (P/N 12669995 int): Investment-cast, roller trunnionRocker Arms (P/N 12669993 exh): Investment-cast, roller trunnionRocker Arm Ratio: 1.7:1Recommended Fuel: Premium pumpMaximum Recommended rpm: 6,600Reluctor Wheel: 58xBalanced: 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.
