Choate Engineering CEP66LLYLD 6.6L Daily Driver Long Block | 2004.5-2005 GM 6.6L Duramax LLY

Features:

• 500 HP rated
• Perfect for daily driving
• Excels at recreational towing
• Improves upon the OE 5.9L
• 5 Year / 100,000 Mile Warranty

Excels at Daily Tasks

The 6.6L Daily Driver Short Block is designed to excel at any daily task. Choate Engineering puts a big emphasis on creating this engine to enable spirited daily driving that makes you enjoy driving your truck every day. This professionally assembled in-house engine is more than capable of recreational level towing such as boats or RV trailers. For improved power and reliability over the OE 6.6L, the 6.6L Daily Driver Short Block is the perfect choice.

Upgraded and Improved 6.6L

Choate Engineering crafted their 6.6L Daily Driver Long Block LLY with precision-engineered components to guarantee your 6.6L engine operates at its peak performance. These parts include Choate's own meticulously crafted heads, Pressure Test Heads, Grind Valves, New Induction Hardened Seats, All New Valve Guides, New Valve Seals, and New Freeze Plugs. Plus, there are upgraded pistons for enhanced durability, surpassing the reliability of the OE 6.6L. These new pistons are .10-.30 inch thicker than stock, paired with new rings and pin retainers, all weight matched prior to crank balancing. The engine undergoes full blueprint machining for proper clearances and optimal efficiency. Choate Engineering's 6.6L Daily Driver Long Block offers a dependable and enjoyable driving experience, making it an ideal upgrade or replacement for the OE 6.6L.

Fits: 2004.5-2005 GM 6.6L Duramax LLY

Applications Notes:

• Optional Parts are not installed. Optional parts are covered under the manufactures warranty and not by CHOATE

Build Features:

• 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. All Manual will be charged the appropriate charges and will be balanced to a stock flywheel we have in stock or you will need to send in your Aftermarket in first.
• 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
• 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
• 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

Warning: This product can expose you to chemicals that are known to the State of California to cause cancer. For more information, visit www.P65warnings.ca.gov