Chevrolet 97779451 6.6L Duramax Diesel Reman Long Block

Chevrolet 97779451 6.6L Duramax Diesel LB

The Chevrolet Performance 97779451 6.6L 403 CID Diesel Remanufactured Long Block delivers a world-class sturdy engine architecture specifically optimized for extreme towing and heavy-duty performance. This 6.6L Duramax core features high-velocity aluminum heads and a robust cast-iron block, engineered to handle massive torque loads and elite thermal demands. It is an ideal replacement fit for Chevrolet Silverado 2500HD and GMC Sierra 3500HD trucks, providing the structural integrity needed for professional-grade work-ready vehicle maintenance.

Integrating this rugged mechanical centerpiece into your heavy-duty truck is simplified by the inclusion of a factory-installed fuel injection intake manifold, water pump, and oil pan. Every unit is manufactured to rigorous metrology standards, ensuring that the internal balance and structural durability remain uncompromised during high-torque professional use. Backed by a 2 Years / 24,000 Miles Limited Warranty, this Duramax long block provides a dependable propulsion solution for enthusiasts and fleet operators who require authentic manufacturing reliability and consistent displacement performance.

Key Features of Chevrolet Performance 97779451

• 6.6L 403ci Duramax Diesel displacement optimized for high-torque output.
• Robust cast iron block and aluminum heads for maximum structural durability.
• Direct application fit for Silverado and Sierra 2500/3500 series trucks.
• Internal engine balance ensures vibration-free operation under heavy load.
• Modern one-piece rear main seal prevents chronic diesel fluid leaks.
• Protected by a premium 2 Years / 24,000 Miles Limited Warranty.

97779451 Include:

• Intake Manifold
• Oil Pan
• Valve Covers
• Timing Cover
• Water Pump
• Harmonic Balancer