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Chevrolet Performance LS3 6.2L Crate Engine

Brand: Chevrolet Performance

Part Number: 19301326

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LS3 6.2L Chevrolet Performance Crate Engine

The LS3 is poised to go down in history as one of Chevy’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's aluminum block is filled with a sturdy rotating 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.

It comes complete from the SS-specific oil pan to the ignition system. It also includes the intake manifold assembly with injectors and throttle body, exhaust manifolds, water pump, balancer, 58x reluctor wheel and 14-inch flexplate. The SS oil pan doesn’t suit all applications; use the vehicle-specific oil pan for original LS-powered vehicles or the Muscle Car Oil Pan Kit (P/N 19212593) for most older vehicles.

LS3 6.2L Performance Crate Engine

430 hp @ 5,900 rpm / 425 lb.-ft. @ 4,600 rpm

 

A New Classic!

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

The LS3 crate motor from GM comes complete from the SS-specific oil pan to the ignition system. It also includes the intake manifold assembly with injectors and throttle body, exhaust manifolds, water pump, balancer, 58x reluctor wheel and 14-inch automatic-transmission flexplate. The SS oil pan doesn’t suit all applications. Use the vehicle-specific oil pan for original LS-powered vehicle or the Chevrolet Performance Muscle Car Oil Pan Kit P/N 19212593 for older vehicles.

19301326 Chevrolet Crate Motor

LS3 6.2L Tech Specs:
Part Number: 19301326
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 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: 6,600
Reluctor Wheel: 58x
Balanced: Internal

 

Recommended Transmission:  Hydra-Matic 4L65-E Four-Speed Automatic P/N 19260380 or T56 Super Magnum six-Speed Manual P/N 19329795

 

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 SS 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

Chevrolet Performance Crate Engines include a 24-month or 50,000-mile (80,000 kilometer) limited warranty.

Click here for more detailed warranty information.




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