The Premium Stock Plus Heads for 5.9L 12v Cummins by Industrial Injection are reliable and affordably priced, ready to bolt on.
A core charge of $700 is added to the listed price.
Key features include New Performance Stainless Steel Valves, High Strength Alloy Valve Guides, and Upgraded 150lb Valve Springs.
The build process involves visual inspection, jet washing, glass beading, magnafluxing or pressure testing.
For porting, valve guides and seats are removed, and new High Strength Alloy, Heat Treated iron-based valve guides are installed.
These guides are heat-treated to Rockwell 22 'C' Scale, ensuring superior wear resistance.
Honed to exact size using diamond honing mandrels, the head receives a multi-angle valve job.
Finally, it is jet washed, dried, and assembled with new valve seals and performance valve springs.
