It's All About Airflow: 2011-2019 6.7L Powerstroke S Port Heads

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April 29, 2026 1 min read

We’ve pushed 6.7 performance hard, and these heads are part of that “do it right” formula. We didn’t guess our way into these heads—we tested, machined, and tested again. Our 2011–2019 6.7 S Port Heads are CNC-ported for consistency cylinder-to-cylinder, built around a street-friendly port that still moves real air (200 CFM @ 25 inHg on our SF-750). They drop in with seamless OEM fitment, and we assemble them with Stage 2 valve springs for boost/RPM capability. If you’re towing, daily driving, or leaning on it at the track, these are the “do it once” heads.

Check Them Out: https://www.spemotorsport.com/collections/powerstroke-oem/products/spe-motorsport-2011-2019-6-7l-powerstroke-street-port-heads

Features:

• Proven Performance: Improved throttle response, more power, and smoother engine operation with gains you can feel on the street, under load, or at the track.
• Street Port Design: Optimized port work increases airflow and combustion efficiency for measurable horsepower and torque gains.
• Full CNC Machining: CNC-ported for precise, repeatable results across every cylinder.
• OEM-Style Fitment: Designed for 2011–2019 6.7L Powerstroke applications for clean integration with factory components.
• Assembled with Stage 2 Valve Springs: Built for added RPM and boost capability.

6.7L Powerstroke ported heads flow sheet

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