Chevrolet Performance GenV LT1 6.2L Wet Sump Crate Engine


  • 455 hp @ 6,000 rpm/455 lb.-ft. @ 4,600 rpm
  • Active Fuel Management &Variable Valve Timing
  • High-pressure direct-injectionliftpump installed
  • With WetSump Oiling System
  • Use with Connect & Cruise 8-speed automatic package

Have your engine dyno tested by one of our professional engine builders to ensure everything is properly broken in. We can dyno your engine with your components to make sure everything is working harmoniously before shipping you the whole assembly drained and ready to install.

Shipping is free, but there is a delivery fee for residential addresses.

LT1 Wet Sump Performance Crate Engine

P/N 19431953

455 hp @ 6,000 rpm / 455 lb.-ft. @ 4,400 rpm

For use with Connect & Cruise 8-speed automatic package.

LT1 6.2L Wet Sump Tech Specs:
Part Number: (wet sump)
Engine Type: Direct Injection spark ignition Gen V 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 12619171): Cast-aluminum with 6-bolt nodular iron main bearing caps
Crankshaft: Forged Steel
Connecting Rods: Forged powdered metal
Pistons (P/N 12662802): Hypereutectic aluminum
Camshaft Type (P/N 12629512): Billet steel roller
Valve Lift (in): 0.561″ intake / 0.531″ exhaust
Camshaft Duration (@0.050 in): 242° intake / 244° exhaust
Cylinder Heads (P/N 12678633): Aluminum, rectangular port D/I
Valve Size (in): 2.130″ intake / 1.590″ exhaust
Compression ratio: 11.5:1
Rocker Arms (P/N 12619829 int): Investment-cast, roller trunnion
Rocker Arms (P/N 12619829 exh): Investment-cast, roller trunnion
Rocker Arm Ratio: 1.81:1
Recommended Fuel: Premium pump
Maximum Recommended RPM: 6600
Reluctor Wheel: 58x
Balanced: Internal

Installation Notes:

  • Engines shipped with high-pressure direct-injection fuel pump installed
  • Assembly does not include electronics
  • Use LT1 Controller Kit, P/N 19355167 for engine operation with 8L90-E 8-speed automatic transmission or P/N 19355458 for 4L70-E 4-speed automatic AND T56 6-speed manual transmissions – Kits include 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 Kit: For LT1 P/N 19355405 use P/N 12678595 FEAD w/o air
    and P/N 12678596 A/C add-on kit
  • 8-bolt crankshaft flange
  • Shipped with 14″ flexplate

Replaces old P/N 19355405 and 19332312 and 19418843

Weight 425 lbs


19328728, 19355405, 19416592, 19418843

LT1 Wet Sump Crate Engine

19431953 Chevrolet Motor

The Next Generation is Here

Introduced on the seventh-generation Corvette Stingray, the LT1 6.2L opened the next chapter in the long, historic legacy of the Small-Block engine?and gives your project vehicle a high-tech heart transplant with an unprecedented balance of performance and efficiency!

The Chevy Performance LT1 crate motor is architecturally similar to the LS family of engines, but with a unique block casting, cylinder head design, oiling system and more. It also combines advanced technologies, including direct injection, Active Fuel Management (cylinder deactivation) and continuously variable valve timing, to support an advanced combustion system.

Our LT1 6.2L crate engine is rated at 460 horsepower and 465 lb.-ft. of torque; and it is offered with a wet sump or dry sump oiling system. A controller specially designed for retro-fit application using an automatic transmission is available.

Replaces old P/N 19355405 and 19416592 and 19418843.


Click here to download installation information.

Chevrolet Performance Crate Engines include a 24-month or 50,000-mile (80,000 kilometer) limited warranty.

Click here for more detailed warranty information.


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Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to