2007.5-2018 Cummins Performance Head (PDM-67STH)

Fits

The Industrial Injection 6.7L Cummins Performance Heads are designed for the daily driver/weekend warrior in mind. Fully CNC ported heads complete and ready to bolt on.

Part Number: PDM-67STH

• A new 5 Axis CNC Cylinder Head Porting Machine with CAD/CAM software specifically designed for cylinder head porting.
• Highest quality upgraded 36mm stainless steel valves with a nitrate coating for ultimate durability.
• Heat Treated iron-based valve guides are installed. 
• High-quality steel plugs.
• A radius-cut steel fire ring to virtually eliminate head gasket failures
• Highest quality brand new performance 95lb valves springs
• Industrial Injection will always deliver the best products for your light, medium, & heavy-duty diesel.
• Quality Made

• Premium valve seat inserts are made from a true Nickel Based Non-Magnetic material 
  

CNC Ported Cylinder Head:

The porting process performed 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.

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 C 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.

Drilled & 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 these cylinder heads. Industrial Injection uses high-quality steel plugs whereas others use aluminum that is prone to leak.

Valve Springs:

Industrial Injection uses the highest quality brand new performance 95lb valve springs custom made right in the USA. They 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 its proper spring rate.

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.