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L8P CRATE ENGINE

L8P 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

Sealed Crate Engine Communication

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PARTS INTENDED FOR COMPETITION USE ONLY.
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PARTS INTENDED FOR COMPETITION USE ONLY.
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PROPOSITION 65 WARNING.
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PROPOSITION 65 WARNING.
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More Power from Our Largest Displacement LT Engines!

We’ve optimized every cubic inch of our largest-displacement LT engine with the unique L8P performance crate engine. With 523 horsepower and 543 lb.-ft. of torque, this package combines the displacement and heavy-duty strength of our production-based L8T 6.6L engine plus a unique camshaft based off the LT2.

PART NO. 19435523

WhyBuy

523 HP@ 5,800 rpm​

WhyBuy

543 LB/FT @ 4,600 rpm

A Winning Combination

A Corvette camshaft and the big-displacement l*T 6.6L truck engine combine for great LT performance and strength.​

By combining the large-displacement and heavy-duty elements of the L8T 6.6L engine and a unique camshaft based off the Corvette Stingray’s high-revving LT2 V-8, Chevrolet Performance have created the all-new L8P Performance crate engine.​

TRANSMISSION OPTIONS

19432682 or 19432684

SUPERMATIC 6L80-E 
SIX-SPEED AUTOMATIC 

(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.  

CHEVROLET PERFORMANCE BENEFITS

CONNECT & CRUISE CRATE POWERTRAIN SYSTEM

CHEVROLET PERFORMANCE ENGINE (PART-ONLY)

CHEVROLET PERFORMANCE TRANSMISSION (PART-ONLY)

Limited Warranty-Backed by Chevrolet

24 Months/50,000 Miles

(E-Rod: 36 Months/50,000 Miles)

24 Months/50,000 Miles

(E-Rod: 36 Months/50,000 Miles)

12 Months/Unlimited Miles

Designed, engineered, and tested to stringent Chevrolet specifications

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Installation Kit included for ease of installation

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Packaged solution with conveniently matched engine, transmission, torque converter, and transmission controller to fit your customized needs

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Simplified part-sourcing process, eliminating the need to independently source compatible components

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Factory tuned and calibrated to fit your unique application

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Eligible for $500, $750, or $1,000 mail-in rebate  See Rebate website for details

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Xmark
Xmark

CONNECT & CRUISE CRATE POWERTRAIN SYSTEM

CHEVROLET PERFORMANCE BENEFITS

CONNECT & CRUISE CRATE POWERTRAIN SYSTEM

Limited Warranty-Backed by Chevrolet

24 Months/50,000 Miles

(E-Rod: 36 Months/50,000 Miles)

Designed, engineered, and tested to stringent Chevrolet specifications

Check

Installation Kit included for ease of installation

Check

Packaged solution with conveniently matched engine, transmission, torque converter, and transmission controller to fit your customized needs

Check

Simplified part-sourcing process, eliminating the need to independently source compatible components

Check

Factory tuned and calibrated to fit your unique application

Check

Eligible for $500, $750, or $1,000 mail-in rebate  See Rebate website for details

 

Check

CHEVROLET PERFORMANCE ENGINE (PART-ONLY)

CHEVROLET PERFORMANCE BENEFITS

CHEVROLET PERFORMANCE ENGINE (PART-ONLY)

Limited Warranty-Backed by Chevrolet

24 Months/50,000 Miles

(E-Rod: 36 Months/50,000 Miles)

Designed, engineered, and tested to stringent Chevrolet specifications

Check

Installation Kit included for ease of installation

Check

Packaged solution with conveniently matched engine, transmission, torque converter, and transmission controller to fit your customized needs

Xmark

Simplified part-sourcing process, eliminating the need to independently source compatible components

Xmark

Factory tuned and calibrated to fit your unique application

Check

Eligible for $500, $750, or $1,000 mail-in rebate  See Rebate website for details

 

Xmark

CHEVROLET PERFORMANCE TRANSMISSION (PART-ONLY)

CHEVROLET PERFORMANCE BENEFITS

CHEVROLET PERFORMANCE TRANSMISSION (PART-ONLY)

Limited Warranty-Backed by Chevrolet

12 Months/Unlimited Miles

Designed, engineered, and tested to stringent Chevrolet specifications

Check

Installation Kit included for ease of installation

Check

Packaged solution with conveniently matched engine, transmission, torque converter, and transmission controller to fit your customized needs

Xmark

Simplified part-sourcing process, eliminating the need to independently source compatible components

Xmark

Factory tuned and calibrated to fit your unique application

Check

Eligible for $500, $750, or $1,000 mail-in rebate  See Rebate website for details

 

Xmark

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 - 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 roads, streets, or highways. Visit www.chevroletperformance.com/emissions for more details. 

 

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.

Installation Guides

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

L8P Tech Specs

  • Part Number: 19435523
  • Engine Type: Gen V Small Block V-8 direct injection spark ignition
  • Displacement (cu. in./L): 400 (6.6L)
  • Bore x Stroke (in/mm): 4.065 x 3.860 (103.25 mm x 98 mm)
  • Block (P/N 19420904): Cast-iron with six-bolt nodular main bearing caps
  • Crankshaft (P/N 12708884): Forged steel
  • Connecting Rods (P/N 12675746): Forged powder-metal
  • Pistons (P/N 12737834-R, 12737835-L): Hypereutectic aluminum
  • Camshaft Type (P/N 12736191): Billet steel hydraulic roller
  • Valve Lift (in.):  0.549 intake / 0.549 exhaust
  • Camshaft Duration (@.050 in.): 218° intake / 231° exhaust
  • Cylinder Heads (P/N 12736192): Aluminum rectangular port D/I with 59.02cc chambers
  • Valve Size (in.): 2.130 hollow intake / 1.590 sodium filled exhaust
  • Compression Ratio: 10.8:1 (nominal)
  • Rocker Arms (P/N 12619829): Investment cast roller trunnion
  • Rocker Arm Ratio: 1.8:1
  • Intake manifold (P/N 12639087): Composite
  • Throttle body (P/N 12730580): 87mm diameter (single-bore)
  • Fuel delivery: High-pressure direct injection (2,175 psi / 150 bar)
  • Recommended Fuel: Premium Unleaded – 91 (R+M)/2
  • Ignition system: Coil-on-plug
  • Maximum Recommended rpm: 6000 rpm
  • Reluctor wheel: 58X
  • Balanced: Internal
chevy-engine-icon

CHEVROLET PERFORMANCE CIRCLE TRACK CRATE ENGINE

  • Features all-new GM OE parts
  • Factory-sealed for fair competition
  • Dyno tested for a minimum of 50 hours with 45 hours at wide-open-throttle (WOT)

COPIES OF THE CHEVROLET PERFORMANCE CIRCLE TRACK CRATE ENGINE

Imitations of the real CT350, CT400, and CT525 engines that are not designed, engineered, tested, and built by Chevrolet Performance.

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.