CHOATE 6.6L Short Block Daily Driver LML Engine 2011-2016 - Duramax Diesel Engine. Manufacturer: CHOATE Engineering Performance
CHOATE Part Number: CEP66LMLSD
DID YOU KNOW? NO MAJOR PARTS* ARE REUSED AT CHOATE! LIFTERS, ALL BEARINGS, AND ALL PISTONS ARE BRAND-NEW PARTS. THIS PUTS CHOATE AT THE FOREFRONT OF THE ENGINE BUILDING INDUSTRY STANDARD. MANY BUILDERS REUSE THESE SAME PARTS. ALWAYS ASK YOUR ENGINE BUILDER IF THESE ITEMS ARE NEW OR USED. *While Choate supplies more new parts than those mentioned above. These are the major items that are often overlooked by others.
This 6.6L LML Duramax Short Block Build Includes:
- Full CNC blueprint machining on the 6.6L Engine, (bore, deck, hone and line honed)
- The Cylinder bores are blueprint 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.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.