6604505LLYTKSOASBCC Speed of Air Short Block (STD/AUTO) Callies Crankshaft

Features:

• Speed of Air piston technology
• Premium Callies crankshaft included
• Professionally machined and bored block
• No cylinder sleeves used
• New OEM or equivalent pistons
• Components meet or exceed OEM specifications
• Includes front cover with seal
• Includes rear cover with main seal
• Oil pan and internal components included
• Complete installation gasket kit included
• Backed by DFC five year warranty
• Fits 2004.5-2005 6.6L Duramax LLY

Put Serious Duramax Strength Back Under The Hood

When your LLY has reached the point where a basic repair no longer makes sense, starting with the right short block can give the entire build a better direction. The DFC Diesel 6604505LLYTKSOASBCC Speed of Air Short Block brings together proven Duramax architecture, upgraded Speed of Air technology, and a Callies crankshaft for a foundation made with demanding diesel applications in mind. It is a strong choice for owners who expect their engine to handle long days, substantial loads, and the kind of regular use that puts every internal component to work. DFC professionally machines the block and bores it for the next oversized piston, accomplishing the rebuild without installing cylinder sleeves. New OEM or equivalent pistons, rings, and gaskets help provide the consistency you want when putting serious time and money into an engine rebuild. You also get the front cover with seal, rear cover with main seal, oil pan, internal components, and a complete gasket kit, giving your installer a more complete starting point for the job. Add DFC's advertised 5 year or 160000 kilometer warranty, and this Speed of Air short block becomes an appealing way to put dependable LLY power back to work.

Better Internals Give Your LLY Room To Perform

There is plenty happening below the deck of this DFC short block, starting with a professionally machined LLY block prepared to accept the next oversized piston while retaining a sleeveless cylinder configuration. A Callies crankshaft serves as a key component within the rotating assembly, providing a premium upgrade at the center of an engine that may see everything from daily driving to demanding commercial workloads. Speed of Air technology adds another level to the build by bringing specialized piston technology into the combustion process rather than relying solely on conventional replacement internals. DFC remanufactures its engines to factory specifications using new industry recognized name brand parts that are selected to meet or exceed OEM specifications. New OEM or equivalent pistons and rings are paired with new gaskets, helping establish a consistent foundation as the engine goes back together. The LLY itself uses a 6.6L V8 overhead valve design and was factory rated at 310 horsepower, making it a capable platform for drivers who value strong diesel torque and responsive performance. With the necessary internal components joined by the included covers, seals, oil pan, and installation gasket kit, this short block provides a well prepared core for rebuilding a 2004.5-2005 LLY Duramax application.

Fitment: 2004.5, 2005 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax LLY Topkick 6

Notes:

• Designed for 2004.5-2005 6.6L Duramax LLY applications.
• Verify TopKick compatibility before placing your order.
• This is a short block assembly, not a complete engine.
• Block is bored for the next oversized piston.
• DFC states no cylinder sleeves are used.
• This configuration includes a Callies crankshaft.
• Includes front cover with seal.
• Includes rear cover with main seal.
• Oil pan and internal components are included.
• Complete installation gasket kit is included.
• DFC uses OEM or equivalent internal components.
• DFC advertises a 5 year 160000km warranty.
• Core Charge: $2,900