LS376/480 495HP Hot Cammed LS3

Description

CLASSIC DRESS LS3 495HP – GM PERFORMANCE MOTOR
The Hot Cam Adds the Heat
Chevrolet Performance engineers took the proven LS3 6.2L (376 cu. in.) platform and gave it an extra edge by swapping the stock camshaft for the racing-inspired LS Hot Cam (P/N 88958753). The result? A thrilling 495 horsepower and 473 lb-ft of torque—a 14% boost in performance from a simple cam upgrade.
This powerful combination, known as the LS376/480, delivers a sharper throttle response and a stronger mid-range pull. The Hot Cam’s 0.525-inch lift and 219°/228° duration allow for greater airflow through the rectangular-port L92-style heads, producing exceptional performance while maintaining everyday reliability.
Each crate engine package comes complete with the intake manifold, throttle body, fuel rail, and ignition system. Pair it with the LS376/480 Controller Kit (P/N 19354330), which includes the required electronic throttle pedal for full ECU control.
TECH SPECS
Part Numbers: 19432416 / 19434638Engine Type: LS-Series Gen IV Small-Block V-8Displacement: 376 cu in (6.2L)Bore x Stroke: 4.065 x 3.622 in (103.25 x 92 mm)Block (P/N 12623967): Cast aluminum, 6-bolt with cross-bolted main capsCrankshaft (P/N 12597569): Nodular ironConnecting Rods (P/N 12649190): Powdered metalPistons (P/N 19207287): Hypereutectic aluminumCamshaft (P/N 88958753): Hydraulic rollerValve Lift: 0.525 in (intake) / 0.525 in (exhaust)Camshaft Duration (@.050 in): 219° intake / 228° exhaustCylinder Heads (P/N 12629063): Aluminum L92-style, 68cc chambersValve Size: 2.165 in intake / 1.590 in exhaustCompression Ratio: 10.7:1Rocker Arms (Int. P/N 12669995 / Exh. P/N 12669993): Investment-cast, roller trunnionRocker Arm Ratio: 1.7:1Recommended Fuel: Premium pumpMaximum Recommended RPM: 6,600Reluctor Wheel: 58XBalanced: Internal
INSTALLATION NOTES

Assembly does not include electronics

Use LS376/480 Controller Kit (P/N 19354330) for engine operation

Includes electronic throttle pedal (required for ECU throttle input)

Includes Chevy F-Body wet sump oil pan

Designed for pre-1976 street vehicles or off-road use

Not for marine applications

Front-End Accessory Drive Kits available in two configurations
WARRANTY
All Chevrolet Performance Crate Engines include a 24-month / 50,000-mile (80,000-km) limited warranty.
⚠️ California Proposition 65 Warning:This product contains chemicals known to the State of California to cause cancer and reproductive harm.