Crate Engine, LS3/430HP, GMPP, Chevrolet, GM # 19435098

Chevrolet LS3 6.2L 430 HP Crate Engine by Chevrolet Performance

6.2L LS3 delivers 430 hp with L92-style aluminum heads, hydraulic roller cam and complete EFI induction.

Chevrolet Performance LS3 is a 6.2L/376-cubic-inch Gen IV Small Block rated at 430 hp with a broad street-performance torque curve. It combines an aluminum block, L92-style 68cc rectangular-port heads, hydraulic-roller camshaft and 10.7:1 compression. The crate engine includes the intake with injectors and throttle body, water pump, balancer, F-body wet-sump oil pan and ignition components.

Additional Technical Specifications • 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 12623063): Hydraulic roller • Valve Lift (in): .551 intake / .522 exhaust • Camshaft Duration (@.050 in): 204° intake / 211° 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 12669995 int): Investment-cast, roller trunnion • Rocker Arms (P/N 12669993 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 • 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. • Intended for pre-1976 street vehicles or any off-road vehicle • Not intended for marine applications • Front-End Accessory Drive Kits are available in several configurations.