Hamilton Cams Cummins 12V Hot Street 188/220 Camshaft Combo | 07-CC-12V188 | 1989-1998 Dodge Cummins

The Hamilton Cams Cummins 12V Hot Street 188/220 Camshaft Combo is designed for 1989-1998 Dodge Cummins 5.9L engines, providing enhanced mid-range power and efficiency. With a user-friendly installation, this camshaft optimizes performance for daily drivers and towing applications, making it an excellent choice for improved engine output.

Features:

• Optimized RPM Range: Designed to perform effectively between 1,700 and 4,000 RPM, ideal for everyday driving and towing.
• Reduced Exhaust Gas Temperature (EGT): Lowers EGT by 200-300 degrees, contributing to better engine longevity and performance.
• Enhanced Fuel Efficiency: Offers improved fuel economy, achieving gains of 1-3 MPG while increasing bottom-end power for quicker throttle response.
• Compatibility with Heavy-Duty Components: Works well with heavy-duty valve springs and pushrods that can withstand pressures up to 750 hp, ensuring reliability under load.

Included:

• 188/220 Camshaft
• Heavy-Duty Pushrods (500-750hp)
• 165 Beehive Valve Springs
• Retainers & Locks
• Lifters/Tappets

Upgrade your Cummins engine with the Hamilton Cams Hot Street Camshaft for a balanced blend of power, efficiency, and durability, tailored for both everyday use and demanding conditions.

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.
  • Do not let the engine start without oil pressure.
  • 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!