2006-2007 Duramax 6.6L LBZ Street Series Long Block Engine DFC SS660607LB


SKU: DFC SS660607LB Categories: ,
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DFC’S street series of engines are DFC?s flagship product. Built for work trucks, daily drivers and the diesel enthusiast in mind these engines are a vast improvement from stock as they contain important upgrades to common problem areas. With the majority of Dodge, Ford and Chevy truck owners having some form or another of aftermarket upgrades done, DFC has remanufactured all of their engines with the highest quality duramax diesel parts in Edmonton. Your engine will perform flawlessly with added horsepower and still backed with one of the industry leading warranties in North America.

Oil Pump

All DFC Duramax engines feature an EDM doweled oil pump shaft with a hardened dowel installed locating the gear to the oil pump shaft preventing slipping and the subsequent oil pressure loss.


Their Rottler equipment allows them to remanufacture the Duramax engine?s to tighter than OEM specifications resulting in a longer lasting more efficient engine assembly.

Head Gasket Sealing

Some model years of Duramax engines are more susceptible to premature head gasket failure. To reduce the chance of this all DFC long blocks come with new head bolts, revised torque sequences and digitally recorded torque values to ensure reliability.

Core Criteria

Ensuring every engine is built to the same high quality standards as the next DFC is very strict on what is remanufactured rejecting components that require considerable ?restoring? to acceptable specifications.

Valve Springs

Instead of just testing old springs and reusing like most remanufactures DFC installs brand new SBI valve springs that are still tested for proper spring pressure on every cylinder head they rebuild.


DFC installs new valves from MAHLE/Clevite or SBI in every cylinder head we remanufacture. Most companies will re-grind and install used again.

Cast Guides

Common industry practice is to check guide clearance and if within specification, not replace. DFC considers this practice unacceptable and installs new cast SBI guides in every cylinder head they?remanufacture.

Weighed Rotating Assemblies

Their production engines are typically matched with near identical weight piston and connecting rod assemblies giving our customers a smoother running and quieter engine.

Torque Specs

These engines use many torque to yield fasteners that require bolt ?stretch? to maintain adequate clamp loads. In addition to not just following the OEM procedures for tightening sequence their assembly technicians record the achieved torque load through use of digital torque wrenches ensuring no fastener will come loose over time.


This will also add the following products to your cart:

  • CORE CHARGE $500.00
  • CORE CHARGE 2000.00


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