Powerstroke Products 6.0 18mm Loaded OEM Head with Machined O-Ring RPI 9L - Factory heat shield

9L - Factory heat shield must be removed

Over Drive clutches 33% increase & 2C clutches 33% increase

completely replaces the poorly designed restrictive factory fuel canister while adding better filtration

Upgrade your rear engine cover and stop the coolant leaks for good

Powerstroke Products 6.0 18mm Loaded OEM Head with Machined O-Ring RPI 9L - Factory heat shieldThese heads are a direct replacement for your tired and cracked 6. 0l heads. New casting, brand new valves, seals and springs. So if you are going cab up why not go back with new instead of old questionable junk. These heads include machined O Ring. The O Ring is designed to keep the compression in the cylinder not in your cooling system. Do Not Use Fel Pro Gasket with O Ringed Head it will not work. Ready to install with injector cups already pressed