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Chevrolet Performance LS376/480 LS3 Crate Engine

Brand: Chevrolet Performance

Part Number: 19301358

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LS376/480 - 495 hp LS3 Crate Engine w/ Hot Cam

The Hot Cam Adds Some Heat To The LS3!

GM's engineers took a production LS3 and swapped out the stock camshaft for the racing-inspired LS Hot Cam (P/N 88958753), which delivered a stunning 495 HP and 473 lb-ft of torque. That’s nearly 12 percent more power and torque from a simple camshaft change! Chevrolet Performance wasted no time in adding the new engine – dubbed LS376/480 – to the crate engine portfolio.

The key to the power is the Hot Cam’s 0.525-inch lift on both the intake and exhaust, along with 219-degree/228-degree duration specs. That’s a bit less lift on the intake side than the LS3 cam, but considerably more duration, allowing the valves to stay open longer to draw in more air from the rectangular-port L92-style heads.

LS376/480 Chevy Crate Engine w/ Hot Cam

495 hp @ 6,200 rpm / 473 lb.-ft. @ 5,000 rpm

 

The Hot Cam adds Heat to the LS3

Chevy Performance engineers took a production LS3 6.2L (376 cubic inches) and swapped the stock camshaft for the racing-inspired LS Hot Cam (P/N 88958753), which delivered a stunning 495 HP and 473 lb-ft of torque. That’s nearly 12 percent more power and torque from a simple camshaft change!

We at GM wasted no time in adding that terrific combination – dubbed LS376/480 – to our crate engine portfolio. The key to the power boost is the Hot Cam’s 0.525-inch lift on both the intake and exhaust sides, along with 219-degree/228-degree duration specs. That’s less lift on the intake side than the stock LS3 cam, but considerably more duration, allowing the valves to stay open longer to draw in more air from the rectangular-port L92-style heads.

This Chevrolet Performance crate engine package includes the intake manifold, throttle body and fuel rail, along with the ignition system and exhaust manifolds. Use it with the LS376/480 with controller kit P/N 19258267, which includes a special pedal for use with the engine’s electronically controlled throttle.

19301358 Chevrolet Crate Motor

LS376/495 Tech Specs:
Part Number: 19301358
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 88958753): Hydraulic roller
Valve Lift (in): .525" intake / .525" exhaust
Camshaft Duration (@.050 in): 219° intake / 228° 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:  SuperMatic™ 4L70-E Four-Speed Automatic P/N 19299055

 

Installation Notes:
• Assembly does not include any electronics
• Use LS376/495 Controller Kit, P/N 19258267 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 two 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.