20mm 6.0L Head Loaded HDVS Oringed

6.0L Powerstroke Loaded O-Ringed Cylinder Head w/ HD Valve Springs – 20mm Dowels (2006–2007)
Part #: PP-20MMLHDVSO

Boost sealing strength and top-end durability in your 2006–2007 Ford 6.0L Powerstroke with the Powerstroke Products Loaded O-Ringed Cylinder Head with Heavy Duty Valve Springs. Designed for high-performance and tuned applications, this head features a machined O-ring sealing surface to improve head gasket retention and keep compression sealed in the cylinders—where it belongs.

Built from a brand-new casting, each head is thoroughly inspected and fully assembled with new valves, seals, and 100lb HD valve springs. The upgraded springs give you better valvetrain control for higher RPM and boost conditions, making this head the perfect match for modified trucks running aftermarket turbos or aggressive tuning.

✅ Features:

• Fits 20mm dowel 6.0L Powerstroke engines

• Brand-new casting – no remanufactured parts or core required

• O-ringed combustion surface – improves sealing under high boost

• Fully assembled with new valves, seals, and heavy-duty valve springs

• Ideal for tuned, boosted, or performance 6.0L Powerstroke builds

• 1-Year / Unlimited Mileage Warranty

• Sold individually – order quantity of 2 for both heads

🔧 Fitment:

• Fits 2006–2007 Ford F-250, F-350, F-450, and Excursion with the 6.0L Powerstroke diesel engine

• Please confirm dowel size before ordering – model year ranges are suggested

⚠️ Notes:

• Use MLS head gaskets only with O-ringed heads

• Hot re-torque is required after installation to maintain warranty

• Head studs sold separately – full line available

• Not available for sale or use in the state of California – see emissions notice

The PP-20MMLHDVSO Loaded O-Ringed Cylinder Head delivers the durability and sealing strength your high-performance 6.0L build needs—right out of the box.