500 HP rated. This engine is fully balanced, and is the perfect engine for spirited daily driving, consumer level towing and everyday life.
- 6.6L 2001-2004 Duramax LB7
- Short Block
- Daily Driver Diesel
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.
Upgrades over the Model C include but are not limited to:
- Full Engine Balancing
- Torque Plate Honing
- Flex Plate
- New Harmonic Balancer.
Common Issue With The 6.6L LB7 (and what we do to fix it): Oil Pressure - The LB7 had one major design flaw above all others. And that was the use of a right-handed thread oil pump nut that was known to back off and leave you without oil to supply your engine. This led to catastrophic failure of the bottom end.
When we find a problem, we fix it. And that is why all our LB7 engines come with the updated left-hand nut.
Vehicles
- 2003-2007 Ford F-250 Super Duty Lariat
- 2003-2007 Ford F-250 Super Duty XL
- 2003-2007 Ford F-250 Super Duty XLT
- 2003-2007 Ford F-350 Super Duty King Ranch
- 2003-2007 Ford F-350 Super Duty Lariat
- 2003-2007 Ford F-350 Super Duty XL
- 2003-2007 Ford F-350 Super Duty XLT
- 2004-2007 Ford F-250 Super Duty Harley-Davidson Edition
- 2004-2007 Ford F-250 Super Duty King Ranch
- 2004-2007 Ford F-350 Super Duty Harley-Davidson Edition
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.