6.6L Short Block Workhorse LLY Engine 2004.5-2006 Duramax Diesel Engine.

Choate Engineering Performance Part SKU:CEP66LLYSW

This build Includes:

• Stage 2 Camshaft
• Installed Rear Cover
• Installed Upper Oil Pan
• Installed Lower Oil Pan
• Oil Level Sensor
• Flexplate
• New Harmonic Damper
• Flycut, Coated, and Delipped Pistons
• New Freeze Plugs
• 5 Year/100k Warranty
• New OE Lifters
• Lifter Guides
• OE Crank Flange Bolts
• New Rod, Main and Cam Bearings
• Install Rear Main Seal
• Install New Rear Cover Gasket
• Install Upper and Lower Oil Pan Gaskets
• Install Pickup Tube O-ring
• Rear Cover Installed
• Connecting Rods

Machining Processes

• Full CNC blue print machining, (bore, deck, hone and line honed)
• The Cylinder bores are blue print bored to a true 90 degrees over the crankshaft center line
• Diamond honed to within .0002 inch for precise piston to cylinder bore clearance.
• Bored and line hone the crank bore housing to precisely align the crankshaft in the engine block.
• Torque Plate Honed
• The piston diameter measured to the nearest .0001 inch matched to cylinder bores.
• The Cylinder block is surfaced to a finish of RA30 or lower, which meets the factory specification in both flatness and smoothness for the block to head sealing surface.
• This is mandatory for proper sealing of a MLS Gasket.
• Keyed Crankshaft
• Balanced and Weight Matched Rotational Assembly
• Flexplate for Automatic transmission. (If you are using this for a manual transmission we highly suggest sending in your flywheel and pressure plate so we can achieve the best balancing job possible for your engine. Also, now is a great time to upgrade your clutch. Get with our team to talk about the options we have available for you!)