Hamilton Cams 188/220 Steel Camshaft | 07-C-188/220S | 1989-2019 Dodge Cummins 5.9L / 6.7L

The Hamilton Cams 188/220 Steel Camshaft is built for 1989-2019 Dodge Cummins 5.9L and 6.7L engines, delivering enhanced mid-range power and improved turbo performance. Designed for applications ranging from daily driving to drag racing, this camshaft offers superior durability with its steel construction and works well with larger turbos or compound setups.

Features:

• RPM Range: Idle to 3,000 RPM, offering strong low-end torque for towing applications.
• Fuel Efficiency: Improves fuel economy by 2-3 MPG with quicker turbo spool.
• EGT Reduction: Lowers exhaust gas temperatures by 200-300 degrees, helping with engine cooling and durability.
• Compatibility: Works well with larger turbos or heads with larger valves and ports for enhanced response.

Whether towing, racing, or upgrading a street truck, this steel camshaft offers reliable performance and increased efficiency across a wide range of setups.

Drop-In Cam Fitment Requirements:

• 12v Engines:
  • Piston protrusion: ≤ 0.025″
  • Valve face depth: ≥ 0.055″ with a standard head gasket
  • Intake centerline: 99°
• 98–02 24v Engines:
  • Piston protrusion: ≤ 0.025″
  • Valve face depth: ≥ 0.038″ with a standard gasket
• 03 and Up Engines:
  • Piston protrusion: 0.018″
  • Valve face depth: ≥ 0.038″ with a standard gasket
• Clearance Adjustments:
  • If minimum piston-to-valve clearance is not met, use an oversized head gasket or cut valve reliefs.
  • Check clearances even with drop-in cams (use the clearance calculator for convenience).
• Steel Cam Version:
  • Install at least two bushings in the cam tunnel to prevent steel from wearing into the cast iron block.
• New lifters are always recommended when changing a cam.

Break-In Procedure:

• Preparation:
  • Apply a liberal amount of quality assembly lube to the cam.
  • DO NOT start the engine without oil pressure.
  • For new engines, apply assembly lube to the oil pump and prime the oil filter.
• Oil Change:
  • Change the oil after completing the break-in procedure.
  • Pre-priming the filter and oil system ensures faster oil pressure buildup.
• Priming Procedure:
  • Disconnect the fuel system.
  • Use the starter to spin the engine until oil pressure is visible or oil flows from the rocker arms (limit each attempt to 10 seconds).
• Initial Run:
  • After verifying oil pressure, start the engine and run it at 1200–1500 rpm for five minutes, then shut it down.
  • Adjust the valves after the initial run to ensure proper settings.
• Additional Tips:
  • If re-torquing or “hot-torquing” the head, complete it before adjusting valves since it affects valve lash settings.
  • After break-in, enjoy the improved airflow!