Both brands designate their heavy-duty models as 2500 ... foundation with its cast iron engine block, cast aluminum cylinder heads, and forged steel crankshaft. Ford's 6.7 Power Stroke diesel ...

Like the F-Series, only the heavy-duty 1000-marked examples were ... Ford ships its high-performance V8 crate engine with ...

Demands on heavy-duty diesel engine oils have changed alongside engine ... which is designed to emulate the area between the crankshaft and connecting rod journal bearings in a warmed up engine.