Hamilton Cams Cummins 12V Towing 178/208 Camshaft Combo | 07-CC-12V178 | 1989-1998 Dodge Cummins

The Hamilton Cams Cummins 12V Towing 178/208 Camshaft Combo is designed for 1989-1998 Dodge Cummins engines, optimizing performance for towing and everyday driving. This camshaft enhances bottom-end power, improves fuel economy, and reduces exhaust gas temperatures (EGT).

Features:

• RPM Range: Functions optimally from idle to 3,000 RPM, providing versatility for towing and daily driving.
• Temperature Reduction: Lowers EGT by 200-300°F, enhancing engine efficiency during heavy loads.
• Fuel Efficiency: Improves fuel economy by 2-3 MPG or more, making it ideal for everyday use.
• Increased Power: Boosts bottom-end power and enables quicker spool-up, beneficial for towing applications.
• Duration Specs: Features a duration of 178° intake and 208° exhaust at .050" lift, ensuring effective airflow.

Included:

• 178/208 Camshaft
• Heavy-Duty Pushrods (500-750hp)
• 165 Valve Springs
• Retainers & Locks
• Lifters/Tappets

Upgrade your Dodge Cummins with the Hamilton Cams 12V Towing Camshaft for enhanced towing performance and fuel efficiency.

Drop-In Cam Fitment Requirements:

• 12v Engines:
  • Piston protrusion: ≤ 0.025"
  • Valve face depth: ≥ 0.055" with a standard head gasket
  • Intake centerline: 99°
• 1998 24v Engines:
  • Piston protrusion: ≤ 0.025"
  • Valve face depth: ≥ 0.038" with a standard gasket
• Clearance Adjustments:
  • If piston-to-valve clearance is insufficient, use an oversized head gasket or cut valve reliefs.
  • Check clearances even for drop-in cams (a clearance calculator is available to assist).
• Steel Cam Version:
  • Requires at least two bushings installed in the cam tunnel to prevent wear on the cast iron block.
  • New lifters are always recommended when changing a cam.

Break-In Instructions:

• Preparation:
  • Apply a liberal amount of quality assembly lube to the cam.
  • Ensure oil pressure is established before starting the engine.
  • For new engines, apply assembly lube in the oil pump and prime the oil filter.
• Oil Change:
  • Change the oil after completing the break-in procedure for optimal performance.
  • Pre-primed filters and oil systems will allow for quicker oil pressure buildup.
• Priming Procedure:
  • Disconnect the fuel system.
  • Spin the engine with the starter until oil pressure is indicated or oil appears at the rocker arms (do not crank for more than 10 seconds at a time).
• Initial Start:
  • Once oil pressure is verified, start the engine and run at 1200–1500 RPM for 5 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, do so before adjusting the valves, as it affects valve lash settings.
  • Enjoy the increased airflow after proper break-in and adjustments!