Intake manifold geometry is just as important as size, and smarter airflow design can improve performance in the 6.7L Power Stroke.
This four-door vintage Power Wagon restomod started with a modern Cummins-powered 2025 Ram 2500 Limited Longhorn Crew Cab 4x4.
This 1967 Kaiser M715 is owned by a military truck fan. He swapped in an Optimizer 6500 diesel and uses the truck for towing and off-roading.
This rare 1968 Dodge Power Wagon M615 has a 12-valve Cummins turbodiesel powerplant and many more surprises.
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