Current Lead Times: 1-3 Weeks on Most Engines; 3-4 Days on Heads – *call us for more exact lead times for your specific build 

6.6L 2001-2004 Duramax LB7 Short Block Workhorse Diesel Crate Engine Choate Performance

UPC : 659657436634


Workhorse series engines: 600 HP rated. Designed with the working man in mind. The perfect platform for those who do heavy hauling regularly. Fully balanced and blueprinted.

  • 6.6L 2001-2004 Duramax LB7
  • Short Block
  • Workhorse Diesel

Upgrades include but are not limited to:

  • Stage 2 Cam Shaft
  • Coated, Flycut and Deliped Pistons, Torque Plate Honing
  • New 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.

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*If you know your vin number before hand it is very helpful during the quotation period. Please note that this will be required before the engine is built.

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