Freedom Series HD Cylinder Head for the 6.0L PowerStroke - 20mm dowel Fleece Performance

A tougher 6.0L head

Fleece's Freedom Series HD head for the 2003-2007 6.0L Power Stroke is built on its own new casting, a higher-tensile alloy with thicker walls and extra material where it counts, so it lasts longer than a stock-style replacement.

It arrives fully assembled, with hardened, oversized tungsten-alloy valve seats made in the USA and a new valvetrain: stainless steel and Inconel valves, springs, retainers, keepers, guides and seals. Fleece also fits a one-piece hoop O-ring in the head, which seals combustion without the seam that a stainless wire ring has.

Who it's for

Owners of 2003-2007 6.0L Power Stroke Super Duty trucks who need a head built for reliability and uptime.

Key specs (per Fleece)

What's included

• Freedom Series HD cylinder head (20 mm dowel, sold each, fits either side)

Fitment notes

• Fits 2003-2007 Ford Super Duty with the 6.0L Power Stroke (per Fleece).
• Heads are sold individually and can be set up for the driver or passenger side.
• 20 mm dowel heads are set up for the 2-bolt rocker box configuration.
• Fleece recommends 6.4L pushrods (Ford 8C3Z-6565-B), which are 0.050 in. shorter than 6.0L pushrods, to absorb the tolerance stack-up of a replacement head.
• Head gasket not included; Fleece recommends Ford KZ3Z-6051-B.
• Use Fleece's identification chart (engine serial number on the rear driver side of the block, or the original FICM sticker) to choose the right head and parts.

Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.