DFC Diesel Remanufactured Street Series 6.6 LB7 Long Block Crate Engine (With Callies Crankshaft)

The DFC Diesel Remanufactured Street Series 6.6 LB7 Long Block Crate Engine (With Callies Crankshaft) is an ideal replacement for the high-mileage or blown Duramax in your Chevy Kodiak/GMC Topkick. Engineered for durability and peace of mind, it's an ideal choice for work trucks, daily drivers, and diesel enthusiasts.

This 6.6 LB7 Long Block is remanufactured to factory specifications, utilizing state-of-the-art Rottler machinery for precision machining. The block is bored to fit oversized pistons, while each engine is equipped with new OEM or equivalent pistons, rings, and gaskets, ensuring top-level consistency and longevity. Enhanced sealing methods address common leak-prone areas, reinforcing overall reliability.

Each remanufactured cylinder head is meticulously reconditioned, featuring new seats, guides, valves, and stem seals, with resurfacing and magnaflux testing to ensure structural soundness. OptiTorque head studs further bolster strength where it matters most.

Built with critical upgrades to tackle common diesel engine issues, this Street Series engine incorporates premium components such as Total Seal gapless piston rings, a custom EDM doweled oil pump gear, and a Woodruff keyed camshaft, delivering performance that surpasses stock engines. Complete with all-new parts--including pistons, rings, bearings, gaskets, valves, and springs--this engine offers a comprehensive solution for those seeking maximum durability, reliability, and performance in their diesel engine.

DFC Long Block Engine Includes
All Rockers/Pushrods Preset To Factory Specs, Complete Top End Gasket Kit To Finish Install, Complete Short Block Assembly And Gaskets, Plus Cylinder Heads.

Features:

• Callies Crankshaft
• Woodruff Keyed Camshaft
• Dfc Custom Edm Doweled Oil Pump Gear
• Improved Gasket Sealing Methods In Common Leakage Areas
• All Engines Come Standard With Total Seal Gapless Piston Rings
• Machined With Some Of The Most Advanced Rottler Machining Equipment In North America
• All New Pistons, Rings, Bearings, Gaskets, Seals, Valves, Springs, Stem Seals And Cast Guides Standard In Every Engine

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 Notes:
Oil pan and rear engine housing are not included. These components are specific to the Kodiak/Topkick models and you must re-use your existing components.
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.