Ford 7.3 Powerstroke Cylinder Head Set

Upgrade your 7.3L Powerstroke with a fully remanufactured, precision-engineered complete set (pair) of cylinder heads from Choate Engineering Performance. Built from pressure-tested OEM cores and completely re-engineered to fix factory failure points, this set delivers unmatched sealing, valvetrain stability, and long-term reliability for your 1994.5–2003 Ford Super Duty & OBS. Step 1: Choose Your Model Tier Select the tier that matches your truck’s setup, workload, and performance goals from the dropdown options above: Features & Specs Daily Driver Set Stock to Light Duty Workhorse Set Heavy Towing & Tunes Workhorse Plus Set Extreme HP & Max Boost Best For Daily driving, stock replacements, and light towing. Heavy-duty work trucks, frequent towing, and moderate performance tunes. Heavy sled pulling, drag racing, high-horsepower tunes, and extreme towing builds. Custom O-Ringed Decks — Included Included Valve Springs & Retainers New/Upgraded New/Upgraded Upgraded Heavy-Duty (HD) Springs Lifter Longevity Fix Included Included Included Airflow & Component Upgrades Included Included Included Step 2: Choose Your Year Range & Bolt Pattern To ensure exact exhaust manifold fitment, select your engine's year model and bolt configuration: 1994.5–1997 Year Model (8-Bolt) - Fits OBS Ford F-250 / F-350 trucks. 1999–2003 Year Model (10-Bolt Exhaust Manifold) - Fits Super Duty F-250 / F-350 / F-450 / F-550 The Choate Advantage (Standard on All Sets) Every pair of Choate 7.3L cylinder heads undergoes an aggressive remanufacturing and blueprinting process designed to solve original factory design flaws: Hydraulic Lifter Longevity Fix: We alter the valvetrain blueprint and valve stem heights to completely remove excess preload on the hydraulic lifters, drastically reducing wear and extending lifter life. Brand-New Internal Components: Every set is built using brand-new, high-quality intake and exhaust valves, valve springs, durable retainers and locks, valve stem seals, valve seats, valve guides, and pre-installed new injector cups for a proper, reliable fuel seal. Optimized Airflow (3-Angle Seats): Valve seats are cut with a precision three-angle profile to optimize airflow through the ports and guarantee an airtight seal against reground valves with inspected margins. Threaded Blow-Proof Plugs: Factory press-fit plugs are replaced with threaded, blow-proof plugs in the top of the head for leak-free peace of mind under extreme pressure. Stress-Relieved OEM Cores: Every core is Magnetic Particle Inspected (MPI) for micro-cracks, baked in a furnace to relieve material stress, and shot-blasted before precision machining begins. Optimal Deck Finish: Resurfaced to strict Roughness Average (Ra) standards to guarantee maximum gasket sealing capabilities. 100% Pressure & Profilometer Tested: Every head is pressure tested at 40 PSI and receives a documented final QC sign-off sheet measuring stem heights, valve recessions, spring pressures, and Ra finish. What’s Included in the Box: (2) Choate Remanufactured 7.3L Powerstroke Cylinder Heads (Complete Pair) Pre-installed brand-new intake & exhaust valves Pre-installed new valve springs, retainers, and keepers (HD valve springs on Workhorse Plus) Pre-installed new injector cups, valve stem seals, seats, and guides Pre-installed O-rings (Workhorse & Workhorse Plus models only) Final Quality Control Inspection Sheet