HSP Diesel's billet valve covers are designed to give your engine a clean, sleek look. HSP Diesel feature a 1/2 Inch NPT port in the center of the cover to optimize crank case ventilation. HSP Diesel are made from 6061 T6 Aluminum, and HSP Diesel incorporate an O-Ring to eliminate the need for messy silicone.
It is recommended to run these valve covers with HSP Diesel's forward-facing thermostat housing, for there are no provisions to mount the factory hardware to upper valve cover.
HSP Diesel's additional breather kit will include all the necessary hardware to route the breathers behind the front cab mounts. This reroute will feature a 1/2 Inch NPT to -10AN aluminum 90 degree fitting to a -10AN nylon braided hose on each valve cover. This is an additional product that is not included with the standard valve covers.