LT4

$16,738

MSRP^†

640 HP

@ 6400 RPM

19355404

PART NO.

630 LB-FT

@3600 RPM

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.

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. Connect and Cruise packages are available for a wide variety of crate engines which can be paired with an automatic or manual transmission.

View the Portfolio Rebate Form

Through December 31, get a $500 or $750 mail-in rebate^† on all Chevrolet Performance Connect & Cruise systems.

Offer Details

Tech Specs

Part Number: 19355404

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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Future GM Technicians Posing for a Picture with Dale Earnhardt Jr.

Bring Us Your Talent

Nobody knows automotive like Dale Earnhardt Jr. — so who better to share advice with aspiring auto techs?

Technician Stories

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The BLOCK

Visit TheBLOCK.com for a behind-the-scenes look at the world of Chevrolet Performance from an enthusiast's point of view.

Learn More

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Want to know the latest in Chevrolet Performance news and more? Connect with us via email and social media today.  

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.

Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.