495 HP @6200 RPM
473 LB/FT @5000 RPM
Hot Performance
The LS3 delivers a stunning 495 horsepower and 473 lb.-ft. of torque. That’s nearly 14 percent more power and torque. 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.
LS376-480 Tech Specs
- Part Number: 19434638
- 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 92 mm)
- Block (P/N 12623967): Cast-aluminum with six-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 68-cc 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: 6600
- Reluctor Wheel: 58X
- Balanced: Internal
LS376/480
Mixing the capable LS Hot Cam with the powerful LS3 6.2L equals 480 horsepower and 475 lb-ft of torque. Mated to the durable 4L70-E 4-speed overdrive transmission or the 6L80-E 6-speed transmission, this system balances performance and efficiency. Convenient pairing with the heavy-duty T56 Super Magnum 6-speed manual is also available.
Connect & Cruise Powertrain System
Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit installations in older vehicles.
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