Following up the 6.4 Powerstroke, the 6.7L had some skeptical eyes upon it. Needing to match the monster of power that was the 6.4, while adding maybe a smidge more reliability. The 6.7L marked some big changes for Ford as they separated engine production from International to an internal engine so they could be in charge of quality control. Overall, we would say that their efforts were successful with the 6.7L still on offer today making over 1200ft.lbs of torque from the factory!
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The 6.7L Powerstroke
Ford started the design of their engine in 2008 under the project name “Scorpion” to compete with the Isuzu based Duramax and the long standing Cummins platform. This engine had to stick, so they redesigned every facet of the engine. Since the 6.7L would have the exhaust manifolds placed in the V of the engine, they designed the first reverse flow aluminum diesel heads which directed air out of the head into the valley of the engine and directly to the turbo rather than route it out of the side and up the back into the turbo through up-pipes. This increased turbo response and reduced engine heat, and by keeping that heat energy condensed into one small area, we really saw the turbo come to life quickly.
Ever heard of a Ford blowing a head gasket? Ford had too, so instead of the 4 bolts per cylinder previously deployed, Ford employed 6 bolts per cylinder of clamping force. Countless