SS6604505LLYTKLB DFC Long Block Engine - Street Series - GM 6.6L Duramax 2004.5-2005 (LLY Engine Code) - TOPKICK/KODIAK (Manual/Automatic)

Overview

Get your Chevy Kodiak/GMC Topkick back on the road with a DFC Diesel Remanufactured Street Series 6.6 LLY Duramax Long Block Crate Engine. Engineered for durability and peace of mind, it's an ideal choice for work trucks, daily drivers, and diesel enthusiasts.

This 6.6 LLY 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

• 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

*DFC RECOMMENDS A NEW OIL COOLER WITH EVERY NEW ENGINE INSTALLATION

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 and backs their engines with an industry-leading 5-year 100,000 mile warranty.

Warranty

 5 Year / 100,000 Miles