06-07 GM 6.6L LBZ Duramax DFC Remanufactured Long Block Crate Engine

DFC engines may take up to 14 weeks to ship. Please contact us to verify lead times if you are in a hurry, before purchasing.  
 

The DFC Long Block Crate Engine is a great option for any diesel enthusiast looking to replace the tired and damaged engine in their 2006-2007 GM 6.6L Duramax LBZ. DFC makes critical improvements to your engine to maintain reliability, even in applications with additional horsepower. One of the many improvements is that every Duramax remanufactured engines receives an EDM oil pump shaft with a hardened dowel installed to prevent slipping and the risk of losing oil pressure. DFC also uses Rottler machining equipment that allows these engines to have  tolerances that are tighter and more precise than OEM specification. DFC makes sure that every engine is built to the same high quality standards by using only the best cores and rejects components that require considerable “restoring”. The precision remanufacturing process makes DFC’s remanufactured Long Block Crate engine an extremely reliable engine.

 

The DFC short block is machined with near identical weight piston and connecting rod assemblies to help you get a smoother running engine that makes less noise and is more balanced. DFC short blocks include reinforced internals with new pistons, rings, doweled oil pump, bearings, and rods. 

 

Unlike some others in the industry that re-use wearing items like valves and valves guides, DFC installs all new valves from high quality sources like MAHLE or SBI and replaces each valve guide with a new cast guide in every cylinder head. To address common cracking areas in the cylinder head, DFC machines each head to remove the factory hardened seat material. DFC then installs new SBI valve seats to help eliminate premature cracking giving you a more durable cylinder head.

 

Full Warranty Information:

DFC stands behind their products with an industry leading 5 year/ 100,000 mile warranty.

Is this for commercial use? If so terms may vary, please click here to review DFC's full warranty information. 

 

 

• Remanufactured Long Block Engine 
• Upgraded EDM Oil Pump Shaft & Hardened Dowel
• Improved Gasket Sealing Methods In Common Leak Areas

Oil Cooler - highly recommended and mandatory if your past engine had a bearing failure.

Injectors - highly recommended especially on higher model engines or engines with contaminated fuel.

Turbocharger - recommended if mileage over 125K, mandatory if shaft play, or if engine was dusted.

Water Pump - highly recommended if engine has over 125K. 

Evans Waterless Coolant - recommended upgrade to prevent corrosion and boilover. 

 

The specific brand of each component may change due to part availability at the time of each build. Parts are chosen at the discretion of DFC and cannot be specially requested. DFC uses only the best components sourced from multiple brands during the remanufacturing process and backs their engines with an industry-leading 5-year 100,000 mile warranty.  

 

Note: $500 Crate charge is included in core charge total. Engine shipping crate must be returned with core engine to receive full core credit.