DFC Diesel KORE6607510LMMLB Kore Series Long Block (STD/Auto) | 2007.5-2010 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax LMM

Features:

• Remanufactured long block crate engine
• Total Seal gapless piston rings included
• For use with automatic and manual transmission
• Professionally machined using Rottler equipment
• Tighter tolerances than OEM specifications
• All new pistons, rings, bearings, and gaskets
• New valves, springs, hardened seats, and guides
• Improved gasket sealing in common leak areas
• Built in ISO 9001:2015 certified facility
• 1 year unlimited mileage warranty

An Affordable Path Back To A Dependable LMM

A worn out LMM Duramax doesn't have to mean an expensive engine replacement or a risky gamble on a used unit. The DFC Diesel KORE Series Long Block was built specifically to bridge that gap, giving 2007.5-2010 GM Silverado and Sierra 2500HD and 3500HD owners a quality remanufactured engine at a more accessible price point. DFC keeps costs down by leaving out components that can be reused from your existing engine or are easily sourced separately, without cutting any corners on the actual remanufacturing process itself. Every long block is machined using Rottler equipment, some of the most advanced machining technology in North America, resulting in tolerances that exceed original OEM specifications. Inside, you're getting all new pistons, rings, bearings, gaskets, seals, valves, springs, hardened seats, stem seals, and cast guides, along with Total Seal gapless piston rings standard. Since a long block arrives as a short block with cylinder heads ready for final buildup, you'll be transferring your bolt-on components like the valve covers, intake, exhaust, fuel system, and turbo over from your existing engine. DFC also builds in improved gasket sealing methods specifically targeting the common leak points this platform is known for.

Precision Machining Built Around Real Duramax Reliability

The DFC Diesel KORE6607510LMMLB is a remanufactured long block engineered specifically for 2007.5-2010 GM Silverado and Sierra 2500HD and 3500HD trucks equipped with the 6.6L Duramax LMM engine, compatible with both automatic and manual transmission applications. Every long block is machined using Rottler equipment, delivering tolerances that exceed OEM specifications throughout the build. The engine includes all new pistons, rings, bearings, gaskets, seals, valves, springs, hardened seats, stem seals, and cast guides, and comes standard with Total Seal gapless piston rings along with improved gasket sealing methods in the areas most prone to leakage on this platform. The long block ships as a complete short block assembly with the cylinder heads included, along with a complete top end gasket kit and silicone to finish the installation, ready for final buildup with your bolt-on components. To maintain warranty coverage, a new oil cooler, new air, oil, and fuel filters, a new water pump, and new lubricating oil are required at the time of installation, and the manufacturer warranty is void if the engine isn't installed with the fluids specified. Every engine is manufactured in an ISO 9001:2015 certified facility and backed by a 1 year, unlimited mileage manufacturer warranty.

Fitment: 2007.5, 2008, 2009, 2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM

Notes:

• New oil cooler required for warranty coverage, sold separately
• New air, oil, and fuel filters required for warranty coverage, sold separately
• New water pump required for warranty coverage, sold separately
• New lubricating oil required for warranty coverage, sold separately
• Warranty is void if not installed with the fluids specified by the manufacturer
• Does not include bolt-on components such as valve covers, intake, exhaust, fuel system, or turbo, swap these over from your existing engine
• Does not include front cover, rear cover, oil pump, upper or lower oil pan, oil pickup tube, rocker arms, pushrods, or valve bridges
• Customer is responsible for professionally testing, cleaning, and replacing injectors, injection pumps, and fuel system as needed
• Component brands may vary by build based on parts availability, cannot be specially requested
• $500 shipping charge/$2,800 core charge 
• Engine shipping crate must be returned with core engine for full core credit
• Manufacturer warranty: 1 year, unlimited mileage
• Turbocharger replacement recommended over 125K miles, mandatory if shaft play present or engine was dusted
• Evans Waterless Coolant recommended upgrade for corrosion and boilover prevention
• This product cannot be shipped to California