XDP offers a large selection of remanufactured 6.6 Duramax LLY Engines to meet your needs. Engines are available for the 2004.5-2005 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD. Whether you use your truck for towing and hauling heavy loads, competitive racing events like drag racing and sled pulling, or as a daily driver, XDP has the 6.6L Duramax engine for you. XDP carries all the industry's top brands including Industrial Injection and DFC.

A short block package consists of an engine block and rotating assembly that includes the crankshaft, connecting rods, and pistons. A long block is made up of all the components in a short block plus the cylinder heads, camshaft, and the valvetrain. The most plug-and-play or turnkey engines are complete crate engines which can even include components such as intake and exhaust manifolds, fuel injectors, as well as the turbocharger. These engines have been remanufactured with tighter and more accurate tolerances that meet or exceed the original manufacturer specifications. Forged internals along with popular upgrades like ARP head studs are offered to make these engines capable of handling significantly higher power levels than the stock setup. Shop 6.6L Duramax LLY engines at XDP today!