Product Description
Hamilton Cams 07-C-178/208 Cast 178/208 Camshaft for 1989–2018 Cummins 5.9L/6.7L
The Hamilton Cams 07-C-178/208 Cast Camshaft is one of the most popular camshaft upgrades available for Cummins-powered trucks, delivering improved towing performance, lower exhaust gas temperatures, increased fuel economy, and quicker turbocharger response. Designed specifically for 1989–2018 5.9L and 6.7L Cummins engines, this proven towing and street-performance camshaft maximizes low-RPM airflow and torque while maintaining excellent drivability.
Featuring 178 degrees of intake duration and 208 degrees of exhaust duration at .050-inch lift, the 07-C-178/208 was engineered to improve engine efficiency under load. Its cam profile helps reduce valve overlap, improve combustion efficiency, lower EGTs, and enhance turbo spool-up characteristics. Whether your truck is used for towing, hauling, daily driving, or street performance, this Hamilton Cams grind is widely regarded as one of the best all-around Cummins camshaft upgrades available.
The Hamilton 178/208 camshaft is particularly effective for trucks operating at higher elevations, pulling heavy trailers, or running larger single turbochargers that benefit from improved low-end airflow and responsiveness. Hamilton Cams considers this one of the most efficient and versatile Cummins camshaft profiles ever developed.
Features
- Cast performance camshaft for 1989–2018 Cummins engines
- 178° intake duration and 208° exhaust duration at .050 inch lift
- Improves low-RPM torque and towing performance
- Reduces exhaust gas temperatures under load
- Improves turbocharger spool-up and throttle response
- Designed to improve overall fuel economy
- Excellent for towing, hauling, and daily driving
- Works with stock and upgraded turbochargers
- Compatible with both 12-valve and 24-valve Cummins engines
- Proven street-performance and work-truck camshaft profile
- Made in the USA
Fitment
- 1989–1993 Dodge Ram 2500/3500 5.9L Cummins (12-Valve)
- 1994–1998 Dodge Ram 2500/3500 5.9L Cummins (12-Valve)
- 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins (24-Valve VP44)
- 2003–2007 Dodge Ram 2500/3500 5.9L Cummins Common Rail
- 2007.5–2018 Ram 2500/3500 6.7L Cummins
- 2008–2018 Ram 4500/5500 6.7L Cummins
Note: Hamilton Cams recommends installing new tappets and appropriate valve springs during camshaft replacement to maximize durability, reliability, and performance.
What's Included
- Hamilton Cams 07-C-178/208 Cast Camshaft
Specifications
- Manufacturer: Hamilton Cams
- Part Number: 07-C-178/208
- UPC: 857340008087
- Camshaft Material: Cast Iron
- Intake Duration @ .050: 178 Degrees
- Exhaust Duration @ .050: 208 Degrees
- Intake Lift: .290 Inch
- Exhaust Lift: .310 Inch
- Operating RPM Range: Idle–4,000 RPM
- Engine Compatibility: Cummins 5.9L and 6.7L
- Engine Type: 12-Valve and 24-Valve
- Application: Towing, Efficiency, Daily Driving, Street Performance
- Country of Origin: USA
Cross Reference Numbers
07-C-178/208, Hamilton 178/208 Camshaft, Hamilton Cummins Tow Cam, Hamilton Street Cam, 857340008087
FAQ
What is the primary purpose of the Hamilton 178/208 camshaft?
The 178/208 grind is designed to maximize low-end torque, towing capability, fuel economy, turbocharger response, and overall drivability while maintaining excellent street manners.
Will the Hamilton 178/208 lower EGTs?
Yes. Many users report EGT reductions of approximately 200–300 degrees Fahrenheit under load due to improved airflow and combustion efficiency.
Does this camshaft improve fuel mileage?
Yes. The 178/208 is widely regarded as Hamilton's most efficient towing and fuel-economy camshaft profile and is designed to improve overall engine efficiency.
Can I run this camshaft with a larger turbocharger?
Absolutely. The 178/208 camshaft is especially effective with larger single turbochargers because it improves low-RPM airflow and spool-up characteristics.
Should I install new tappets and valve springs?
Yes. Hamilton strongly recommends installing new tappets and appropriate valve springs to maximize reliability, longevity, and performance.
Is this camshaft suitable for a daily-driven truck?
Yes. The 07-C-178/208 is considered one of the best street and towing camshafts available for Cummins-powered trucks because it improves drivability without sacrificing reliability.
