DFC Diesel Street Series Long Block Engine – 6.7L Powerstroke (SKU: 671116LB)

Designed for strength, durability, and consistent performance, the DFC Diesel Street Series Long Block for the 2011–2016 6.7L Powerstroke delivers an industry-leading remanufactured solution. Each engine is built to exceed OEM specifications using premium components and cutting-edge machining. Ideal for towing, hauling, or heavy-duty use, this long block is backed by a 5-year / 160,000 km warranty and strict core selection standards.

Key Features:

• 5-Year / 160,000 km (100,000 mi) Warranty: Among the best coverage available in North America.

• High-End Fasteners: Includes ARP Series 2000 or OptiTorque head studs based on availability.

• Precision Machined: Block is bored for oversized pistons using state-of-the-art Rottler equipment.

• New Internal Components: Pistons, rings, gaskets, guides, valves, seals, and springs are all brand new.

• Balanced Assemblies: Matched rotating components improve engine smoothness and noise reduction.

• Enhanced Bed Plate Sealing: Additional silicone bead applied for superior leak prevention.

• Upgraded Valve Seats: Factory seats replaced with hardened SBI intake and exhaust seats.

• Premium Valvetrain: New Mahle/Clevite or SBI valves and SBI valve springs installed.

• Strict Core Acceptance: Only cores within strict dimensional tolerance are remanufactured.

What’s Included:

• Complete long block assembly (short block + remanufactured cylinder heads)

• Top-end gasket kit for installation

• Rockers preset to factory specifications

• ARP Series 2000 or OptiTorque head studs

Vehicle Fitment:

• 2011–2016 Ford F-250 / F-350 / F-450 / F-550 Super Duty

• Equipped with the 6.7L Powerstroke V8 Diesel engine