Unlock more airflow, lower exhaust gas temperatures, and increased horsepower with the Hamilton Cams Cast Performance Camshaft. Designed for serious street, towing, competition, and pulling applications, this camshaft delivers improved cylinder filling and exhaust scavenging without sacrificing drivability. With a broad 1,700 - 4,500 RPM powerband, this cam has consistently demonstrated 40 - 60 horsepower gains (depending on fueling and turbocharger combination) while reducing EGTs by 200 - 300 Degree F under load.
Whether you're building a high-performance tow rig, weekend drag truck, or pulling truck, this camshaft provides the airflow needed to support larger injectors, upgraded turbochargers, and improved cylinder head flow.
Features and Benefits:
- Broad 1,700 - 4,500 RPM operating range
- Proven 40 - 60 HP gains with supporting modifications
- Lowers exhaust gas temperatures by 200 - 300 Degree F
- Improved cylinder filling and exhaust scavenging
- Excellent drivability with increased top-end power
- Compatible with both 12-Valve and 24-Valve Cummins engines
Details:
- Sold As: Each
- Universal: No
- Vehicle Type: Truck
- Liter: 5.9L, 6.7L
- Fuel Type: Diesel
- Valve: 12-Valve, 24-Valve
- Material: Cast
- Duration at .050 Inch: 188 Degree Intake / 220 Degree Exhaust
- Intake Centerline: 99 Degree (12-Valve)
- RPM Range: 1,700 - 4,500 RPM
Fitment Notes:
- Fitment: 1989-2007 Dodge Ram 5.9L Cummins and 2007.5-2018 Ram 6.7L Cummins flat-tappet engines; verify piston-to-valve clearance and supporting valvetrain requirements.
- Hamilton Cams warranties camshafts only when installed with Hamilton Cams lifters and valve springs.
- Using the complete Hamilton valvetrain ensures proper compatibility, break-in, and long-term reliability.
- Although this is considered a drop-in camshaft for many applications, all piston-to-valve clearances should be verified during assembly.
- 12-Valve: Maximum piston protrusion: .018 Inch
- 12-Valve: Minimum valve face depth: .055 Inch
- 12-Valve: Standard thickness head gasket
- 12-Valve: Installed on a 99 Degree intake centerline
- 12-Valve: If minimum piston-to-valve clearance is not achieved, use an oversized head gasket or machine valve reliefs as required.
- 24-Valve: Maximum piston protrusion: .018 Inch
- 24-Valve: Minimum valve face depth: .038 Inch
- 24-Valve: Standard thickness head gasket
- 24-Valve: If necessary, additional piston-to-valve clearance can be obtained through valve reliefs or an oversized head gasket.
- Always install new lifters when replacing a camshaft.
- Upgraded valve springs are required.
- Verify piston-to-valve clearance on every engine, regardless of advertised drop-in compatibility.
Installation Notes:
- Proper break-in is essential for maximizing camshaft life and performance.
- Apply a generous amount of quality assembly lube to all camshaft lobes and lifter faces.
- Prime the oil pump with assembly lube during new engine builds.
- Fill and prime the oil filter before startup.
- Disable fuel delivery and crank the engine until oil pressure is established or oil reaches the rocker arms.
- Never allow the engine to start without confirmed oil pressure.
- Start the engine only after verifying oil pressure.
- Bring the engine completely to operating temperature.
- If the cylinder head requires a hot retorque, perform it before adjusting valve lash.
- After any retorque procedure, reset valve lash.
- Once complete, change the oil and filter before placing the engine into normal service.
- Flat tappet camshafts require oil with sufficient anti-wear additives. Oils lacking adequate zinc, phosphorus, and molybdenum can significantly reduce camshaft and lifter life.
Approved Oils:
- Valvoline Full Synthetic 15W-40
- Valvoline Synthetic Blend 15W-40
- Valvoline All-Terrain 15W-40
- Schaeffer's 15W-40
- Mobil Delvac Extreme 15W-40
- Liqui Moly Touring High Tech 15W-40
- Driven Racing Oil 15W-40
- Shell Rotella T6 Full Synthetic 15W-40
- Shell Rotella 15W-40
- Use 5W-40 only in sub-zero operating conditions.
Applications:
- High-performance street trucks
- Tow rigs
- Drag racing
- Stock-class pulling
- Daily-driven performance builds