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LT4 Wet Stump

LT4 Wet Stump

SKU: 19431955

The ultimate engine for your project car


The LT4 supercharged 6.2L V-8 is the latest high-tech small-block crate engine from Chevrolet Performance.


The perfect balance of performance and efficiency, the LT4 leverages the technologies introduced on the 2014 Corvette Stingray’s LT1 Gen-V small-block, including Direct Injection and continuously Variable Valve Timing, while advancing the supercharging technologies established with the previous-generation Corvette ZR1’s LS9 engine. The result is a surprisingly efficient engine capable of producing 640 horsepower and 630 lb-ft of torque.

  • Horsepower

    640 HP

  • Torque

    630 LB-FT

  • Tech Specs

    Engine Type: Direct Injection spark-ignition Gen-V Small-Block V-8

    Displacement (cu. in.): 376 (6.2L)

    Bore x Stroke (in.): 4.06 x 3.62 (103.25 x 92 mm)

    Block (P/N 12619171): Cast aluminum with 6-bolt nodular iron main bearing caps

    Crankshaft: Forged steel

    Connecting Rods: Powdered-metal steel

    Pistons (P/N right hand 12674094 and left hand 12674093): Forged aluminum with internal ribs; flat-top crown

    Camshaft Type (P/N 12642245): Hydraulic roller

    Valve Lift (in.): .492 intake / .551 exhaust

    Camshaft Duration (@0.050 in.): 189° intake / 223° exhaust

    Cylinder Heads (P/N 12646959): A356-T6 rotocast aluminum 

    Valve Size (in): 2.13 intake / 1.59 exhaust

    Compression Ratio: 10.0:1

    Required Fuel: Premium

    Maximum Recommended rpm: 6600

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