Powerstroke Products PP-HDVS7.3 Heavy Duty Valve Spring & Retainer Kit

Keep valves seated when boost and RPM climb. This complete heavy-duty valvetrain kit is built for 1994–2003 Ford 7.3L Powerstroke engines that have outgrown stock springs—street performance, towing, sled pull, and high-boost builds.

Stock 7.3 valve springs can lose control as cylinder pressure and engine speed rise. Valve float and reversion steal power and put valves, seats, and pistons at risk. The PP-HDVS7.3 kit uses 165 lb seat-pressure springs, rated at 1.880" installed height, plus heavy-duty locks and retainers so the valvetrain stays stable up to 5,500 RPM and about 75 psi of boost.

What’s in the kit

• Heavy-duty 165 lb valve springs
• Heavy-duty retainers
• Locks / keepers
• Complete set

Key features

• Complete drop-in performance kit—not just springs
• 165 lb springs for high-RPM and high-boost control
• Helps prevent valve float and reversion
• Built for race, tow, and extreme-duty 7.3 applications
• Direct-fit for 1994–2003 7.3L Powerstroke cylinder heads

Fitment Fits 1994–2003 Ford 7.3L Powerstroke engines, including F-250, F-350, F-450 Super Duty, and Excursion. Confirm year, engine, and head configuration before ordering.

Product details

• Manufacturer: Powerstroke Products
• Seat pressure: 165 lb @ 1.880" installed height
• Rated use: up to 5,500 RPM / about 75 lbs of boost
• Includes: springs, locks, and retainers
• Warranty: 1 year (manufacturer)