6.4L Power Stroke Ported Cylinder Heads – Warpath Stage 2

Built for real-world performance, not just peak flow numbers.

DDPM Warpath Stage 2 cylinder heads are designed, CNC machined, and assembled in-house using brand-new 6.4L Power Stroke castings — no re-manufactured heads and no core exchange required.

The Warpath program was developed on our SuperFlow SF-750 with a focus on improving airflow throughout the usable valve-lift range while maintaining strong air velocity and balanced intake and exhaust performance.

CNC Porting & Design

• Fully CNC-ported exhaust runners
• CNC-developed intake bowl work
• Intake and exhaust combustion chamber shaping
• Precision performance valve job
• O-ringed for improved cylinder sealing under high cylinder pressure
• Brand-new cylinder head castings
• Fully assembled and ready to install

Rather than simply enlarging the intake runner to chase a higher peak CFM number, the Warpath Stage 2 retains the factory-style intake runner while concentrating the port work in areas where we found meaningful airflow improvements.

The result is a strong, usable flow curve designed for street, towing, and performance applications.

6.4L Power Stroke Warpath Stage 2 Flow Data @ 28″ H₂O

Peak Flow

167 CFM Intake
157 CFM Exhaust

Tested at 28″ H₂O on DDPM’s SuperFlow SF-750 flow bench.

Why Airflow Matters

The factory 6.4L Power Stroke cylinder head is restrictive, particularly on the exhaust side. Improving the cylinder head’s ability to move air can become increasingly important as airflow demand increases with upgraded turbochargers, fueling, camshafts, and higher-horsepower combinations.

Warpath Stage 2 development focuses heavily on the exhaust side while also improving intake airflow through the bowl, valve job, and combustion chamber.

The goal is improved cylinder filling and exhaust evacuation without unnecessarily increasing intake-runner volume.

Designed for the Usable Lift Range

Peak airflow is only one part of cylinder head performance.

The valve travels through the entire lift curve every time it opens and closes. That’s why we concentrate on airflow throughout the usable lift range rather than developing a cylinder head solely around a large peak CFM number.

This makes the Warpath Stage 2 an excellent match for the valve-lift range commonly used with performance 6.4L Power Stroke camshafts.

Camshaft Compatibility

Warpath Stage 2 heads work especially well with stock, Stage 1, and Stage 2 camshaft combinations.

They can also be used with larger performance combinations where increased cylinder head airflow is desired without stepping up to our more aggressive Black Label™ porting program.

Fitment

• 2008–2010 Ford 6.4L Power Stroke
• Compatible with OEM intake and exhaust manifolds
• Compatible with most aftermarket intake and exhaust systems

What’s Included

• Two brand-new cylinder head castings
• Warpath Stage 2 CNC porting
• Performance valve job
• O-ringed cylinder heads
• Fully assembled and ready to install
• No core exchange required
• Built to order
• Shipping included in the price

Warpath Stage 2

Warpath was developed to provide a meaningful step above a replacement cylinder head without turning a street-performance head into an oversized race port.

Strong airflow.
Strong exhaust performance.
Usable velocity.
Repeatable CNC machining.

Designed, machined, flow tested, and assembled by Dynamic Diesel Performance & Machine.