Description

Opting for a DFC Diesel Remanufactured Long Block Crate Engine in your 2001-2004 GM 6.6L Duramax LB7 presents a cost-effective alternative to investing in an entirely new truck. These remanufactured engines are meticulously crafted to offer a reliable and robust replacement for your vehicle. Throughout the remanufacturing process, DFC implements vital enhancements, ensuring the engine’s longevity, particularly in applications with increased horsepower demands.

For instance, each engine incorporates an EDM oil pump shaft featuring a hardened dowel, effectively preventing slippage and mitigating the risk of oil pressure loss. DFC employs Rottler machining equipment to guarantee that each engine is assembled with tolerances surpassing OEM specifications, resulting in a more efficient and enduring engine.

Engine Remanufacturing 

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.

Cylinder Head

Unlike some others in the industry that re-use wearing items like valves guides, DFC replaces each one with a new cast guide in every cylinder head. Instead of just re-grinding and reusing valves like other companies, DFC installs all new valves from high quality sources like MAHLE or SBI.

Warranty

DFC engines are remanufactured by diesel enthusiasts for diesel enthusiasts. DFC stands behind their products with one of the industry’s leading 5 year 100,000 mile warranty (Non-Commercial).

DFC 6.6L Long Block Includes

Complete short block with the front cover and seal, rear cover with main seal, oil pan, all new internal components, cylinder heads with all rockers and pushrods installed, doweled oil pump gear, woodruff keyed camshaft and complete gasket kit for installation.

Features:

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

New Engine Checklist (Replacement Items – Sold Separately):

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.

Application Note: 

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.

Notes:

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