6.6L 2004.5-2005 Duramax LLY Long Block Workhorse Diesel Crate Engine Choate Performance

Description

6.6L Duramax LLY Long Block Engine 2004.5-2006 – Duramax Diesel Engine.

This build Includes:

• Our Built-In-House O Ringed Heads 
• Stage 2 Camshaft
• Chromoly Push Rods
• Flycut, Coated, and Delipped Pistons
• Pressure Test Heads
• Remanufactured Valves
• New Induction Hardened Seats
• All New Valve Guides
• Install New Valve Seals
• Test Spring Tension
• New Freeze Plugs
• Keyed Crankshaft
• Head Studs
• New Piston Rings
• New Pin Retainers
• New OE Lifters
• Lifter Guides
• OE Crank Flange Bolts
• Crankshaft is Polished and ground to .0005 concentricity or less
• New Rod Bearings
• New Main Bearings
• New 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
• New Damper

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.
• Crankshaft – Balanced and 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!)