Product Description
The HAMILTON CAMS 07-CC-12V188 CAST 188/220 CAMSHAFT COMBO is Hamilton's proven Hot Street camshaft package for 1989–1998 Cummins 5.9L 12-valve engines. Designed for enthusiasts seeking stronger mid-range power, faster turbo spool-up, reduced exhaust gas temperatures, and a broader powerband, this complete valvetrain package delivers substantial performance improvements while remaining street-friendly for daily-driven trucks.
Built around Hamilton's popular 188/220 camshaft profile, this combo includes the camshaft, heavy-duty pushrods, upgraded valve springs, retainers, locks, and lifters/tappets. The package was engineered to support larger single turbochargers, compound turbo setups, drag racing, stock-class sled pulling, and high-performance street applications. The camshaft operates efficiently throughout the 1,700–4,500 RPM range while maintaining excellent drivability.
Compared to a stock camshaft, the 188/220 profile improves airflow through the cylinder head, increases mid-range torque and horsepower, lowers EGTs by approximately 200–300°F in many applications, and provides noticeably improved throttle response. It remains one of the most popular performance camshaft upgrades available for the 12-valve Cummins platform.
FEATURES
- Complete Hamilton 188/220 camshaft combo package
- Designed specifically for 1989–1998 Cummins 5.9L 12-valve engines
- 188° intake / 220° exhaust duration @ .050"
- Improves turbocharger spool-up and throttle response
- Broadens powerband and increases mid-range torque
- Helps reduce EGTs under heavy load
- Supports larger single and compound turbo setups
- Includes upgraded 155–165 lb valve springs
- Includes heavy-duty pushrods
- Includes lifters/tappets
- Ideal for street, strip, sled pulling, and performance towing applications
- Made in the USA
FITMENT
- 1989–1993 Dodge Ram 2500/3500 5.9L Cummins 12V (VE Pump)
- 1994–1998 Dodge Ram 2500/3500 5.9L Cummins 12V (P7100 Pump)
- Fits manual and automatic transmission applications
- Fits 2WD and 4WD trucks
WHAT'S INCLUDED
- Hamilton 188/220 Cast Camshaft
- Heavy-Duty Pushrods
- 155–165 lb Valve Springs
- Retainers and Locks
- Lifters / Tappets
CROSS-REFERENCE AND RELATED PRODUCTS
- Hamilton 07-CC-12V178 Cast 178/208 Camshaft Combo
- Hamilton 07-C-188/220 Cast Camshaft
- Hamilton 07-C-188/220S Steel Camshaft
- Hamilton 07-S-001 Beehive Valve Springs
- Hamilton 07-P-002 Extreme Duty Pushrods
- Hamilton 07-T-001 1.45" Tappets
- Hamilton 07-T-002 DLC Billet Tappets
- Hamilton 07-C-001 Zinc Break-In Additive
SPECIFICATIONS
- Manufacturer: Hamilton Cams
- Part Number: 07-CC-12V188
- UPC: 857340008063
- Camshaft Material: Cast Iron
- Duration @ .050": 188° Intake / 220° Exhaust
- RPM Range: 1,700–4,500 RPM
- Valve Springs Included: Yes
- Retainers Included: Yes
- Locks Included: Yes
- Pushrods Included: Heavy-Duty
- Lifters Included: Yes
- Engine Compatibility: Cummins 5.9L 12-Valve
- Applications: Street, Strip, Sled Pulling, Larger Single Turbo, Compound Turbo
- Country of Origin: USA
FAQ
What type of truck is the 188/220 combo designed for?
The 188/220 combo is designed for performance-oriented 12-valve Cummins builds including street trucks, weekend racers, stock-class sled pullers, and larger turbo applications. It offers stronger mid-range power than the 178/208 towing grind.
What comes in the Hamilton 07-CC-12V188 combo kit?
The kit includes the 188/220 cast camshaft, heavy-duty pushrods, valve springs, retainers, locks, and lifters/tappets for a complete matched valvetrain package.
Will this camshaft lower EGTs?
Yes. Many installations report EGT reductions of approximately 200–300°F due to improved airflow and cylinder scavenging characteristics.
Can I use this camshaft with compound turbos?
Absolutely. The 188/220 profile was specifically designed to work exceptionally well with larger single turbochargers and compound turbo systems.
Is piston-to-valve clearance required?
Yes. Hamilton recommends verifying piston protrusion and valve face depth before installation. While commonly referred to as a drop-in camshaft, proper clearance measurements should always be performed during installation.
Is this camshaft suitable for towing?
Yes, but trucks focused primarily on towing and fuel economy are often better served by Hamilton's 178/208 profile. The 188/220 is intended for stronger mid-range power and higher-performance applications.
