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Chevrolet Performance - LS3 6.2L 376 C.I.D 430 HP Fully Dressed Long Block Crate Engines 19540155
Chevrolet Performance - LS3 6.2L 376 C.I.D 430 HP Fully Dressed Long Block Crate Engines 19540155
SKU:GMP19540155
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OVERVIEW
425 lb.-ft. @ 4,600 rpm
Previous number 19435098
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.
Chevrolet Performance LS3 430 HP Complete Crate Engine 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 (see catalog)
- Includes Camaro F-body oil pan
- Not intended for marine applications
- Front-End Accessory Drive Kits are available in several configurations (see catalog for application)
- Does not include exhaust manifolds or flexplate/flywheel
Mobil 1 is the recommended engine oil for all Chevrolet Performance Engines
Chevrolet Performance Crate Engines include a 24-month or 50,000-mile/80,000-kilometer limited warranty, whichever comes first. See your GM dealer for details.
Chevrolet Performance does not utilize any used or remanufactured parts in this crate engine, except for the starter, alternator and power steering pump
This part is intended for competition use only. See page 2 of catalog for complete details
| TECH SPECS | Part Number: 19435098 |
| 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 12729604): | Cast aluminum with 6-bolt, cross-bolted main caps |
| Crankshaft (P/N 12736808): | 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 |
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