**Please allow 2-3 weeks for all orders to ship as some parts do take longer to receive**
L8P Crate Engine 523hp 543lbft
Part Number: 19435523
Your Price:
$8,948.80
Suggested Retail: $10653.33
California Proposition 65 Warning L8P Long Block Chevrolet Performance LT-Series Crate Engine 19435523
523hp @ 5,800 rpm
543 lb.-ft. @ 4,600 rpm
NOTE: Refer to catalog for the complete horsepower and torque testing procedures.
More Power from Chevrolet Performance's Largest Displacement LT Engine!
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 LT2-based camshaft.
It’s all rooted in the tough foundation of the L8T, with a forged steel crankshaft, high-strength parts, high-flow heads and composite intake manifold. We then add a more performance-oriented valvetrain, including valves, springs, and a unique non-AFM (Active Fuel Management) LT2-based camshaft. The net result is an increase of 122 horsepower and 79 lb.-ft. of torque over the production 6.6L engine.
Our L8P crate engine package comes complete from the throttle body to the oil
pan, including the PCV tube, evap tube, oil dipstick, oil fill tube and cap. It does
not include the controller, harness, oxygen sensors or a Front-End Accessory
Drive system. See Installation Notes below for recommendations.
Chevrolet Performance LP8 Long Block Crate Engine Installation Notes
- Engine is shipped with high-pressure direct-injection fuel pump installed
- Front End Accessory Drive system must be ordered separately and includes hydraulic power steering, with center pulley. Pulley-mounted fan not recommended. See catalog for options.
- Includes 8-bolt flexplate for automatic transmissions
- Use with Engine Control kit 19435524 (must use 6L80-E transmission) See catalog for detail
Mobil 1 is the recommended engine oil for all Chevrolet Performance Engines
Chevrolet Performance Crate Engines include a 24-month or 50,000-mile/80,000-kilometer limited warranty, whichever comes first. See your GM dealer for details.
Chevrolet Performance does not utilize any used or remanufactured parts in this crate engine, except for the starter, alternator and power steering pump
This part is intended for competition use only. See page 2 of catalog for complete details
| TECH SPECS | Part Number: 19435523 |
| Engine Type: | Gen V Small Block V-8 direct injection spark ignition |
| Displacement (cu in): | 400 (6.6L) |
| Bore x Stroke (in): | 4.065 x 3.860 (103.25 mm x 98 mm |
| Block (P/N 19420904): | Cast iron with 6-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 12672469): | Billet steel hydraulic roller |
| Valve Lift (in): | 0.549 intake / 0.549 exhaust |
| Camshaft Duration (@.050 in): | 218º intake / 231º 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 |
| 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 |