In Stock
Inspected & Documented
Condition notes recorded before palletizing.
30-Day Startup Warranty
Covers block, heads and internal moving components.
In Stock & Ready to Freight
Crate Engines
Chevrolet Performance 6.6L 400 C.I.D. Diesel Remanufactured Long Block Crate Engines 97779462
$6,994.89
+ $295.00 flat-rate insured LTL freight
(details)
$7,289.89 delivered to the continental US
- Palletized and heavy shrink-wrapped for freight
- LTL carrier delivery with optional liftgate service
- Ships in 1–2 business days from Los Angeles, CA
- Transit typically 3–7 business days, continental US
Secure checkout by Stripe
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
Chevrolet Performance 6.6L 400 C.I.D. Duramax Diesel Remanufactured Long Block Crate Engine (97779462), High-Torque Diesel Power!
Upgrade your heavy-duty truck or off-road build with the Chevrolet Performance 6.6L Duramax Diesel Long Block Crate Engine!
The Chevrolet Performance 6.6L 400 C.I.D. Duramax Diesel Remanufactured Long Block Crate Engine (97779462) is a remanufactured high-torque diesel engine designed for maximum reliability in heavy-duty applications. Featuring a cast-iron block and high-flow aluminum cylinder heads, this long block assembly is ideal for diesel truck owners looking for a high-quality, factory-spec replacement engine. With a proven design and factory-grade internals, this Duramax crate engine ensures long-lasting power and efficiency.
A workhorse diesel engine built for durability, towing power, and efficiency!
Requires a compatible fuel system, ECU, and external components for installation.
What’s Included in the Chevrolet Duramax Diesel Long Block?
Fully Assembled 6.6L Duramax Diesel EngineBuilt for heavy-duty applications
OEM-Spec Cylinder HeadsProvides improved airflow and durability
Factory-Installed Intake Manifold & Fuel Injection SystemDelivers efficient power and fuel economy
OEM Oil Pan, Timing Cover, and Valve CoversEnsures seamless compatibility with existing components
Water Pump & Harmonic Balancer InstalledReduces vibrations and improves cooling performance
EXCLUDES turbocharger, fuel injectors, ECU, exhaust manifold, and wiring harness.
Technical Specifications
| Feature | Details |
|---|---|
| Brand | Chevrolet Performance |
| Manufacturer’s Part # | 97779462 |
| Product Type | Remanufactured Long Block Crate Engine |
| Summit Racing Part # | NAL-97779462 |
| Crate Engine Family | Duramax Diesel |
| Actual Displacement | 6.6L / 400 C.I.D |
| Assembled? | Yes |
| Engine Block Material | Cast Iron |
| Cylinder Head Material | Aluminum |
| Engine Balance | Internal |
| Compression Ratio | Factory-Spec |
| Camshaft Type | Diesel-Specific |
| Rear Main Seal Style | 1-Piece |
| Induction System | Fuel Injection |
| Intake Manifold Included? | Yes |
| Throttle Body Included? | No |
| Distributor Included? | No |
| Oil Pan Included? | Yes |
| Valve Covers Included? | Yes |
| Timing Cover Included? | Yes |
| Water Pump Included? | Yes |
| Harmonic Balancer Included? | Yes |
| Flexplate Included? | No |
| Flywheel Included? | No |
| Air Cleaner Included? | No |
| Spark Plugs Included? | Not Required (Diesel) |
| Spark Plug Wires Included? | Not Required (Diesel) |
| Computer Included? | No |
| Wiring Harness Included? | No |
| Supercharger Included? | No |
| Quantity | Sold Individually |
Designed for Duramax diesel trucks, fleet vehicles, and heavy-duty applications!
Fitment & Compatibility
Direct replacement for GM trucks equipped with a 6.6L Duramax Diesel engine
Perfect for heavy-duty towing, fleet vehicles, and work trucks
Compatible with OEM and aftermarket Duramax performance upgrades
Ensure proper fuel system and ECU compatibility before installation!
Installation Notes & Recommendations
Professional Installation RecommendedEnsures correct fitment and peak performance
Requires Fuel System, ECU, and TurbochargerNot included with the long block
Designed for Heavy-Duty UseIdeal for trucks, towing applications, and fleet vehicles
Not emissions-certified, verify compatibility with local regulations before ordering.
Frequently Asked Questions (FAQ)
What vehicles is this engine compatible with?
- This Chevrolet Performance Duramax Diesel Long Block is designed for GM trucks and work vehicles equipped with the 6.6L Duramax engine.
Does this engine come with a turbocharger?
- No, you must reuse or purchase a new turbocharger separately.
Can I install this engine myself?
- Professional installation is highly recommended to ensure proper fitment and performance.
What fuel does this engine require?
- This Duramax diesel engine runs on ultra-low sulfur diesel fuel and requires a compatible fuel injection system.
Is this engine covered under warranty?
- Warranty details vary by supplier, please check with your retailer for specific coverage.
Order Your Chevrolet Performance 6.6L Duramax Diesel Long Block Crate Engine Today!
Restore your truck’s power with this heavy-duty Duramax diesel engine!
OEM-Quality Duramax Diesel for Heavy-Duty Trucks & Work Vehicles
Built for Reliability, Fuel Efficiency, and High Torque Output
Factory-Spec Remanufacturing for Long-Term Durability
Ideal for Fleet Vehicles, Towing, and Off-Road Applications
ORDER NOW & GET YOUR TRUCK BACK TO WORK!
Brand: Chevrolet Performance
Manufacturer’s Part Number: 97779462
Part Type: Crate Engines
Product Line: Chevrolet Performance 6.6L 400 C.I.D. Diesel Remanufactured Long Block Crate Engines
Summit Racing Part Number: NAL-97779462
Crate Engine Family: Duramax Diesel
Actual Engine Displacement: 6.6L/400
Crate Engine Cylinder Head Material: Aluminum
Engine Block Material: Cast iron
Assembled: Yes
Engine Balance: Internal
Rear Main Seal Style: 1-piece
Intake Manifold Included: Yes
Intake Manifold Style: Fuel Injection
Cylinder Heads Included: Yes
Carburetor Included: No
Throttle Body Included: No
Distributor Included: No
Oil Pan Included: Yes
Valve Covers Included: Yes
Timing Cover Included: Yes
Water Pump Included: Yes
Harmonic Balancer Included: Yes
Flexplate Included: No
Flywheel Included: No
Air Cleaner Included: No
Spark Plugs Included: No
Spark Plug Wires Included: No
Computer Included: No
Wiring Harness Included: No
Supercharger Included: No
Quantity: Sold individually.
Startup & Installation Checklist
- Replace timing components, water pump and plugs before initial startup where applicable.
- Refill all fluids with manufacturer-specified oil and coolant.
- Verify sensors, ECU pinouts and grounds against your chassis or hull wiring.
- Startup warranty covers heads, block and internal lubricated components for 30 days from delivery.
Full terms: 30-day startup warranty · returns
