LS3 ENGINE - 480 Hp 19435100

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79.04 (cm)
70.49 (cm)
79.04 (cm)
Current Stock:


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When our engineers took a production LS3 6.2L (376 cubic inches) engine and swapped the stock camshaft for the racing-inspired LS Hot Cam (P/N 88958753), the result was a stunning 495 horsepower and 473 lb.-ft. of torque.

That’s nearly 14 percent more power and torque from just a camshaft change!

We 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-in 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 a little longer to draw in more air from the rectangular-port L92-style heads.

The crate engine package includes the intake manifold, throttle body and fuel rails, along with the ignition system. Use it with the LS376/480 controller kit P/N 19354330.

• Assembly does not include any electronics
• Use LS3 Controller Kit P/N 19354330for 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


Part Number: 19435100
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 12736808): 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 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