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The Hamilton Cams 07-C-178/208 Camshaft is the most efficient camshafts tested for the Dodge/RAM Diesel. On a moderate street truck, it will net you the best economy out of all Hamiltom Cams. Due to its short duration and wide lobe separation angle, it also has the least overlap (when intake and exhaust valves are open at the same time) of any Hamilton camshaft.

In testing, it has been found that this camshaft moves significant air at lower engine rpms and helps the turbo spool much sooner. The trade off? It gives up power compared to Hamilton's larger cams above 2600 rpm (still above a stock cam). If you live at high altitudes, tow heavy or are looking for the best engine efficiency possible for everyday use, this cam will help you achieve that. Install with the intake from a 97-99 centerline.
Although it works great as an efficiency cam, it is also popular with common rail engines that have larger single turbos or that have larger valves and ports. Larger turbos typically have less low rpm response as do cylinder heads with large ports and/or large valves. In these applications, it will really help get large turbos spooled much earlier.

While this camshaft is considered a drop-in replacement, it is important to check proper clearances. On 1998.5-2002 applications, you will need no more than .025″ piston protrusion and at least .038″ valve face depth with a standard gasket. 2003-2007 and 2013-2018 engines, you will need .018″ piston protrusion and at least .038″ valve face depth with a standard gasket. If you do not meet the minimum requirements for piston to valve clearance, you can still run an oversize head gasket or cut valve reliefs. Zinc additive required.
  • Can Reduce EGT's 200-300 Degrees
  • RPM Range: Idle - 4000
  • Duration @ .050″ Of Lift:  178 Intake, 208 Exhaust 
  • Increased Low RPM Performance 
  • Great For Towing & Efficiency
  • For Moderate Street Trucks 
  • Drilled & Tapped For Bolt-On Cam Gear Retainer
  • Requires Zinc Additive (Not Included)