11-16 Duramax LML HSP Billet Valve Covers Manual adjustments may be necessary to

adjustments may be necessary to ensure correct fitment

and a more efficient/useable torque curve

A properly size compound system can drastically improves every performance aspect of your truck

Perfect for work

0L Power Stroke Engine Only

11-16 Duramax LML HSP Billet Valve Covers Manual adjustments may be necessary toOur billet valve covers are designed to give your engine a clean, sleek look. They feature a 1 2" NPT port in the center of the cover to optimize crank case ventilation. They are made from 6061 T6 Aluminum, and they incorporate an O Ring to eliminate the need for messy silicone. It is recommended to run these valve covers with our forward facing thermostat housing, for there are no provisions to mount the factory hardware to the upper valve cover. Our