QUALITY PARTS.
HIGH-CALIBER BUILD.
Offer Valid 1/1/24 to 12/31/24
$250
Sealed Crate Engine Communication
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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
523 HP@ 5,800 rpm
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.
†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.
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
Mobil 1 is now The Official Motor Oil of Chevrolet Performance.
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