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The steel 188/220 cam is listed for drag-strip and stock-class pulling applications. It requires at least two bushings in the cam tunnel, plus the piston-to-valve clearance checks detailed below.
These 1.45-inch DLC-coated steel tappets are intended for high-RPM builds using 110 lb or heavier valve springs. Choose them as part of a matched camshaft and spring combination; contact us if you need help confirming the setup.
Our 110 lb seat-pressure springs are for 24-valve Cummins competition builds running above 4,500 RPM. They are not recommended for daily drivers. A steel cam and steel tappets are recommended for this combination.
Our 188/220 cast cam is intended for daily-driver and light-competition Cummins builds, with a listed operating range of 1,700–4,500 RPM. Check the piston-to-valve clearance requirements below before choosing this grind.
6.7L Cummins Buyer’s Guide
Choosing the right camshaft and valvetrain components for a 2007.5–2018 6.7L Cummins depends on how the truck is used, the turbocharger setup, desired RPM range, horsepower goals, cylinder pressure, and supporting engine modifications. A dependable towing truck requires a different combination than a high-horsepower street or competition build.
Hamilton Cams develops 6.7 Cummins camshafts and supporting valvetrain parts to improve airflow, turbo response, torque delivery, durability, and reliable engine operation. The best results come from choosing the camshaft, valve springs, pushrods, tappets, retainers, and installation components as a complete system.
Towing-oriented 6.7 Cummins camshaft combinations should prioritize responsive turbo spool-up, usable low-end torque, controlled exhaust gas temperatures, drivability, and dependable operation under load.
Street builds often benefit from a wider usable powerband, improved airflow, stronger acceleration, and better turbo response without sacrificing low-speed manners or everyday drivability.
Higher-horsepower applications may require a more aggressive camshaft profile, upgraded valve springs, stronger pushrods, careful clearance checks, and supporting fuel, air, and engine modifications.
A performance camshaft must work correctly with the rest of the valvetrain. Properly matched supporting components help maintain valve control, transfer motion accurately, reduce unnecessary wear, and protect the engine throughout its intended RPM and load range.
Hamilton Cams specializes in Cummins camshaft and valvetrain development. Our technical team helps customers match parts to their engine, turbocharger, vehicle use, and performance goals rather than treating every 6.7 Cummins build as the same application.
The best 6.7 Cummins camshaft depends on the truck’s intended use, turbocharger, engine modifications, RPM range, and horsepower goals. Towing, daily driving, street performance, and competition builds each require different priorities.
A properly selected camshaft can improve airflow, engine response, turbo spool characteristics, torque delivery, and overall performance. Results depend on the complete engine combination, tuning, and correct installation.
Valve-spring requirements depend on the camshaft profile, lift, intended RPM range, boost, exhaust pressure, and engine setup. Use the spring specifications recommended for the selected camshaft and application.
A properly matched camshaft can improve airflow and cylinder evacuation, which may improve turbo response and help manage exhaust gas temperatures. Results vary with fueling, tuning, turbocharger selection, load, and supporting modifications.
Installation may require checking piston-to-valve clearance, valve-spring setup, retainer clearance, pushrod length, camshaft timing, gear fitment, and other measurements specific to the engine and selected components.
This category is intended for compatible 2007.5–2018 Ram and Dodge Ram trucks equipped with the 6.7L Cummins engine. Always verify the exact year, engine configuration, and product fitment before ordering.
Contact Hamilton Cams for help matching a camshaft and valvetrain combination to your truck, turbocharger, and performance goals.
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