CNC Ported Induction Street Series Cylinder Head for 5.9L/6.7L Cummins

Upgrade your 2003-2018 Dodge RAM 5.9L or 6.7L Cummins with our premium CNC Ported Street Series Cylinder Head, engineered for superior performance and reliability. Designed as a 6.7L Cummins cylinder head, this upgraded head is compatible with both 5.9L and 6.7L engines—simply pair it with the correct head gasket for your engine block’s model year.

Key Features

Enhanced Durability with Induction Hardened Seats

Unlike stock Cummins heads, which are prone to dropping valve seats during heavy towing or high-performance street use, our cylinder heads feature integrated induction-hardened valve seats. These robust seats are designed to withstand extreme conditions, ensuring your engine stays reliable whether you’re hauling heavy loads or pushing the limits on the street.

Optimized Airflow with CNC Porting

Our Stage 1 CNC porting delivers a 20% increase in airflow, achieving 198 CFM intake flow and 208 CFM exhaust flow. This precision porting enhances engine efficiency, reduces exhaust gas temperatures (EGT), and boosts performance for towing and street applications up to 900 hp. This durable port design excels in towing and moderate street performance applications with a focus on ultimate reliability.

Superior Construction

Each new cylinder head is meticulously crafted with:

• Multi-angle valve job for optimal sealing and performance.

• Premium stock-sized valves for precise operation.

• Upgraded PDD 4.5k valve springs, locks, retainers, and valve seals for enhanced durability.

• Threaded freeze plugs replace soft factory plugs, eliminating the risk of coolant leaks under the valve cover that can mix coolant with engine oil.

Built for Reliability

Say goodbye to sidelined tow rigs and street trucks. Our cylinder heads are designed to prevent common issues like dropped valve seats and blown freeze plugs, ensuring your Cummins engine performs reliably under demanding conditions.

Ideal Applications

The CNC Ported Street Series Cylinder Head is recommended for:

• Towing and hauling vehicles requiring maximum reliability.

• Street performance trucks aiming for up to 900 hp with lower EGTs.

• Moderate builds prioritizing durability and efficiency over extreme horsepower.

Why Choose Our Cylinder Head?

This cylinder head exceeds factory specifications, offering unmatched reliability and performance for your Cummins-powered Dodge RAM. Whether you’re towing heavy loads or enjoying spirited street driving, this cylinder head delivers the durability and efficiency you need to keep your truck running strong.

Note: Ensure you use the correct head gasket for your engine block’s model year to guarantee compatibility.