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LT4 WET SUMP CRATE ENGINE

LT4 WET SUMP CRATE ENGINE

QUALITY PARTS.
HIGH-CALIBER BUILD.

Offer Valid 1/1/24 to 12/31/24

$250 rebate* on the purchase of a Chevrolet Performance Transmission within 180 days of the purchase of any Chevrolet Performance Crate Engine**. Rebate amount dependent on the package purchased.

QUALITY PARTS.
HIGH-CALIBER BUILD.

Offer Valid 1/1/24 to 12/31/24

$250 rebate* on the purchase of a Chevrolet Performance Transmission within 180 days of the purchase of any Chevrolet Performance Crate Engine**. Rebate amount dependent on the package purchased.

COMPLETE YOUR PERFECT BUILD

OFFER VALID 1/1/23 TO 12/31/23.

$250 rebate on the purchase of a Chevrolet Performance Transmission within 180 days of the purchase of any Chevrolet Performance Crate Engine

PARTS INTENDED FOR COMPETITION USE ONLY.
Click for more details.

PARTS INTENDED FOR COMPETITION USE ONLY.
Click for more details.

PROPOSITION 65 WARNING.
Click for more details.

PROPOSITION 65 WARNING.
Click for more details.

Supercharged power 

As the heart of the C7 Corvette Z06, the supercharged LT4 6.2L SC is the second most powerful engine ever offered in a regular-production Chevrolet.

PART NO. 19431955

WhyBuy

640 HP @ 6400 RPM

WhyBuy

630 LB-FT @3600 RPM

Engineered for supremacy

The LT4 features a 1.7L Eaton R1740 TVS supercharger, which spins at up to 20,000 rpm. That’s enough to generate more than 9 pounds of boost and help produce 640 horsepower and 630 lb.-ft. of torque.

TRANSMISSION OPTIONS

19368615

SUPERMATIC 4L75-E
FOUR-SPEED AUTOMATIC 

(REMANUFACTURED)

19432682 or 19432684

SUPERMATIC 6L80-E 
SIX-SPEED AUTOMATIC 

(REMANUFACTURED)

19418254

8L90-E
EIGHT-SPEED AUTOMATIC 

(REMANUFACTURED)

19420480

SUPERMATIC 10L90-E 
TEN-SPEED AUTOMATIC 

(REMANUFACTURED)

19352208

SUPER MAGNUM
SIX-SPEED MANUAL 

(REMANUFACTURED)

19368615

SUPERMATIC 4L75-E
FOUR-SPEED AUTOMATIC 

(REMANUFACTURED)

19432682 or 19432684

SUPERMATIC 6L80-E 
SIX-SPEED AUTOMATIC 

(REMANUFACTURED)

19418254

8L90-E
EIGHT-SPEED AUTOMATIC 

(REMANUFACTURED)

19420480

SUPERMATIC 10L90-E 
TEN-SPEED AUTOMATIC 

(REMANUFACTURED)

19352208

SUPER MAGNUM
SIX-SPEED MANUAL 

(REMANUFACTURED)

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.  

Parts and labor warranty when installed by a GM Dealer or qualified installing independent Service Center (ISC) or when sold over the counter and REPAIRED by a GM Dealer or qualifying ISC. Parts only when consumer repaired or installed in non-highway application. Coverage limited to defects in material and/or workmanship of the specific part only. Warranty valid when all required components are installed on the same vehicle and purchased on one invoice.

††Must be purchased from a participating U.S. dealer or Chevrolet Performance Authorized Reseller. Mail-in rebate offer not available with other offers. See gmpartsrebates.com for details, applicable rebate amounts, and rebate form. Rebates must be submitted by 1/31/25. Rebates may be submitted over two invoices within 120 days of each other. Allow 6 to 8 weeks for delivery of debit card. Offer valid 1/1/24 to 12/31/24.

 

Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details. Rebate form and details available at chevrolet.com/performance/offers.

Project Cars

These passion projects were brought to life with a convenient Connect & Cruise Powertrain System.

1970 CAMARO RS

Classic muscle, modernized.

The uncompromising 650-hp LT4 and T56 Super Magnum 6-speed manual take the iconic street cred of a 1970 Camaro RS to a new level.

Installation Guides

Find everything from vital data about your engine’s capabilities to how to install it into your build.

LT4 Tech Specs

  • Part Number: 19431955
  • Engine Type: Direct Injection spark-ignition Gen-V Small-Block V-8
  • Displacement (cu. in.): 376 (6.2L)
  • Bore x Stroke (in.): 4.065 x 3.622 (103.25 x 92 mm)
  • Block: Cast aluminum with 6-bolt nodular iron main bearing caps
  • Crankshaft: Forged steel
  • Connecting Rods: Forged powdered-metal steel
  • Pistons: Forged aluminum
  • Camshaft Type: Hydraulic roller
  • Valve Lift (in.): .492 intake / .551 exhaust
  • Camshaft Duration (@0.050 in.): 189° intake / 223° exhaust
  • Cylinder Heads: A356-T6 rotocast aluminum; as cast with 65.5cc chambers
  • Valve Size (in): 2.130 intake / 1.590 exhaust
  • Compression Ratio: 10.0:1
  • Required Fuel: Premium pump
  • Maximum Recommended rpm: 6600

Mobil 1 is now The Official Motor Oil of Chevrolet Performance.

VISIT OUR BRANDS FOR YOUR OE NEEDS

Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details.