6.6L 2011-2016 Duramax LML Short Block Daily Driver Diesel Crate Engine Choate Performance

CHOATE 6.6L Short Block Daily Driver LML Engine 2011-2016 – Duramax Diesel Engine. Manufacturer: CHOATE Engineering Performance CHOATE Part Number: CEP66LMLSD

This 6.6L LML Duramax Short Block Build Includes:

• Full CNC blue print machining on the 6.6L Engine, (bore, deck, hone and line honed)
• The Cylinder bores are blue print bored to a true 90 degrees from the crankshaft center line, prior to being diamond honed to within .0002 inch for precise piston to cylinder bore clearances.
• We main bore and line hone the crankshaft which is honed to precisely align the crankshaft in the engine block.
• We bore the block back to the crankshaft center line and hone the block to RA13 finish.
• 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.
• Connecting Rods, New Damper and Flexplate for Automatic Transmission.
• Check both wrist pin and crank pin to rod clearances
• All Manual Transmission Engines will incur additional charges and will be balanced to a stock flywheel.
• Or if you are using an your Aftermarket flywheel please send in to Choate
• New Upgraded Pistons .10 – .30 over New Pistons, Rings, Pin Retainers weight matched prior to crank balancing
• New OE Lifters, Lifter Guides, OE Crank Flange Bolts, updated 9.800 OE Pushrods
• Crankshaft Balanced with the Rotational Assembly. Checked for run-out inspected for fatigue.
• Crankshaft is polished and ground to .0005 concentricity or less.
• Camshaft
• Polished and Inspected
• New Rod, Main and Cam Bearings
• New Pushrods
• Install Rear Main Seal
• Install New Bed Seals
• Install New Rear Cover Gasket
• Install Upper and Lower Oil Pan Gaskets
• Install Pickup Tube O-Ring
• Rear Cover Installed

CHOATE Engineering Performance Crate Engine Features :

• 500 HP rated.
• This CHOATE engine is fully balanced, and is the perfect engine for spirited daily driving, consumer level towing and everyday life.

Upgrades over the Model C include but are not limited to:

• Torque Plate Honing
• Full Engine Balancing
• Harmonic Balancer
• Head Studs
• Valve Seats
• Rear Cover and Pickup Tube
• Oil Pans
• Welded Crank Gear

Common Issues With The 6.6L Duramax (and how we fix them)

• Head Gaskets- This was the first Duramax engine to use the variable geometry vane turbo
• It was so rely problematic for the failures with head gaskets.
• While our business is engines, we also encourage the customers to fix the cooling issues and update the LLY with the larger later year model LBZ fan and radiator.
• But we will take care of our end. And that is why we make sure that all our Duramax engines come standard with headstuds.
• So you don’t blow a gasket.

Optional Parts are not installed. Optional parts are covered under the manufacturer’s warranty and not by CHOATE.