INDUSTRIAL INJECTION PDM-59RHC DODGE RACE HEAD FOR 03-07 5.9L CUMMINS STAGE 2

The Industrial Injection 5.9L Cummins Race Heads are designed for the racer / sled puller in mind. Fully CNC ported heads complete and ready to bolt on.

CNC Ported Cylinder Head: (Milled off intake runner to accept ZZ Fab intake) sold separately

The porting process preformed uses a new 5 Axis CNC Cylinder Head Porting Machine with CAD/CAM software specifically designed for cylinder head porting. CNC porting brings unparalleled accuracy to head porting with each port flowing the same.

This helps balance the power that each cylinder produces, making tuning easier. After the CNC process we then hand blend each port to perfection.

New Performance Custom Port Oversized 34mm Stainless Steel Valves:

We use the highest quality upgraded stainless steel valves with a nitrate coating for ultimate durability to out-perform and outlast any aftermarket or OE valves available.

Note: Because of the larger sized valves in this head they will not clear a 5.9 bore. You must have a 6.4 or 6.7 bore to clear.

High Strength Alloy Valve Guides:

New High Strength Alloy, Heat Treated iron based valve guides are installed. These guides are heat treated to Rockwell 22 Scale, which produces the ultimate in wear resistance. This is far superior to original guide material, including Bronze. The guide incorporates a spiral grove inside the guide to hold oil and aid the lubrication of the valve during engine operation.

Performance High Temp Valve Seats:

Premium valve seat inserts made from a true Nickel Based Non-Magnetic material that was developed for extreme operating conditions. These performance valve seats immensely reduce the possibility or dropping a valve seat.

Drilled and Tapped Coolant Freeze Plugs In Head:

The factory head has press in freeze plugs that are prone to leaking and blowing out under the valve cover. This process eliminates the failure from ever happening to you with our cylinder heads. We use high quality steel plugs where others use aluminum that are prone to leak.

Fire Ringed Head:

The fire ringed head procedure was designed to use with our custom fire ring head gasket which utilizes a radius cut steel fire ring to virtually eliminate head gasket failures while still allowing you to daily drive your vehicle with confidence in its longevity capabilities.

Valve Springs:

We use the highest quality brand new performance 120lb valves springs custom made right here in the USA. We designed these springs to offer more lift than the competition. Each valve spring is tested multiple times in house before assembly to ensure it maintains it proper spring rate.

The Build Process:

Heads are first jet washed in a high pressure spray cabinet to remove oil and dirt, then glass beaded to remove carbon. Next they are checked by magnafluxing, (cast iron only) or pressure testing. They are visually inspected for defects that would make them unusable. Valve guides and seats are removed as needed for porting.

Port development is accomplished using a superflow 600 flow bench with a computer recording all flow measurements.
Many things are considered when designing a cylinder head Port; air flow is only one of the things to think about. Another major concern is port wall thickness.

Anyone can get a head to produce high flow numbers, but if doing so leaves the port wall to thin the casting will crack. High performance Diesel heads are more prone to crack because of the thermal shock experienced by excessive intermittent or long term exhaust temperatures.

The porting is then preformed using a new 5 Axis CNC Cylinder Head Porting Machine with CAD/CAM software specifically designed for cylinder head porting. CNC porting brings unparalleled accuracy to head porting with each port flowing the same. This helps balance the power that each cylinder produces, making tuning easier.

New High Strength Alloy, Heat Treated iron based valve guides are installed. These guides are heat treated to Rockwell 22 Scale, which produces the ultimate in wear resistance. This is far superior to original guide material, including Bronze. The guide incorporates a spiral grove inside the guide to hold oil and aid the lubrication of the valve during engine operation.

Guides are then honed (not reamed) to exact size using a diamond honing mandrel. Diamond abrasives allow for consistency of size, surface finish, and bore geometry with no variation from guide to guide. The guide size is then verified using a valve guide bore gauge.

As needed the head receives new Premium valve seat inserts made from a true Nickel Based Non-Magnetic material that was developed for extreme operating conditions.

Next the head is treated to a multi angle valve job to help maximize the flow of air in and out of the head. This is accomplished using a Serdi 100 guide and seat machine. Serdi uses a solid carbide straight shank pilot. When inserted into the valve guide, it simulates the real valve stem during the centering process. This guarantees the valve seat is finished for a perfect valve to seat match.

Using CBN or Diamond tooling the head is given a new surface. With our berco milling machine we can control the surface finish to accommodate different head gasket types. For example MLS head gaskets require a very smooth surface finish.

Finally the head is jet washed dried and assembled with new valve seals and new performance valve springs.

The Industrial Injection PDM-59RHC Dodge Race Head for the 03-07 5.9L Cummins Stage 2 epitomizes cutting-edge performance engineering for serious racers and sled pullers. Expertly crafted with full CNC porting, this race head is prepped and ready for a direct bolt-on installation. Each head has been meticulously ported using a state-of-the-art 5 Axis CNC machine, paired with advanced CAD/CAM technology to ensure unparalleled accuracy and uniformity in airflow. Every cylinder receives equal power delivery, simplifying your tuning process and enhancing overall engine performance.

To further optimize performance, the head is fitted with oversized 34mm stainless steel valves, designed to outlast and outperform conventional aftermarket or OEM alternatives. The premium, nitrate-coated valves ensure durability under extreme conditions. Compatibility is key; this head requires 6.4 or 6.7 bore to accommodate the larger valves.

High-strength alloy valve guides, heat treated to Rockwell 22 Scale, provide exceptional wear resistance, while the spiral groove design helps retain oil for optimal lubrication. Premium high-temperature valve seats made from nickel-based non-magnetic material bolster reliability under extreme operating conditions, minimizing the risk of dropping a valve seat.

Moreover, the design incorporates drilled and tapped coolant freeze plugs to prevent leaks, unlike typical press-in plugs. The fire ringed head procedure associated with a custom fire ring gasket virtually eliminates head gasket failures, ensuring your vehicle remains trustworthy during demanding drives.

For optimal performance, the race head also features custom-made 120lb valve springs, engineered to enhance lift and performance. After an exhaustive build process that includes thorough cleanings, inspections, and precise honing, the head is ready to deliver exceptional power and reliability. Elevate your racing experience with the Industrial Injection Dodge Race Head—where performance meets precision.