6.6L 2006-2007.5 Duramax LBZ Short Block Daily Driver Diesel Crate Engine Choate Performance

6.6L Short Block Daily Driver LBZ Engine 2006-2007.5 – Duramax Diesel Engine. Optional Parts are not installed. Optional parts are covered under the manufactures warranty and not by CHOATE.

This build includes:

• Full CNC blueprint machining, (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 New Flexplate with automatic transmissions.
• Check both wrist pin and crank pin to rod clearances.
• New upgraded Pistons .10 – .30 inch over – New Pistons, Rings, Pin Retainers weight matched prior to crank balancing
• Crankshaft – Balanced with the Rotational assembly checked for run-out inspected for fatigue.
• Crankshaft is Polished and ground to .0005 concentricity or less
• New Rod, Main and Cam Bearings
• Camshaft – Polished and Inspected
• 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

Assembled by Our Professional Team in house

• Perfect for daily driving use, family haulers, recreational towing (not intended for commercial use).
• 5 year 100K warranty on our Daily Driver builds with upgrade-able options
• By buying you agree to have the engine core ready for pickup and return to us within 30 days of receiving the engine.
• Failure to do so will void your warranty.

Core will be inspected and must meet our specifications to deem it a good usable core. Mainline and crank must meet our specs as well. The engine will be shipped to choate engineering performance in shrink wrap on a non returnable wooden pallet & the appropriate core charge due.

Once inspected appropriate core fees will be kept and balance remaining will be refunded promptly in the form of a check.

We require a like for like core- meaning if we send you a long block we require everything from your core long block to be usable and machinable.

• We will need the year, make, model, and vin number to make sure you are buying the correct engine before we ship.
• We must know if the transmission is manual or automatic as this effects prices and usability.
• If transmission is manual, we suggest purchasing a flywheel so we can balance it to a new flywheel.
• If customers flywheel is used the engine will be balanced to a stock flywheel.