GSC Power Division 5012 High-Pressure Valve Spring Kit for 18-25 Ford Mustang V8

Vehicle Fitment

• 2018-2025 Ford Mustang GT/Bullitt/Mach 1 (5.0 L Coyote Gen 3/Gen 4)
• 2018-2025 Ford F-150 (5.0 L Coyote Gen 3)

Fitment Notes

• High-pressure valve spring kit for Ford Coyote 5.0L engines (Gen 3/4) requiring elevated boost, high rpm or high-lift cams.
• Requires full engine teardown (cylinder head removal) for installation -- not a simple bolt-on.
• Always verify your engine's generation, camshaft lift, spring install height and valve geometry before ordering.

Features

• Ovate conical spring design for superior stability under high RPMs and boost.
• Titanium retainers and hardened seats included for durability under extreme conditions.
• Installed pressure ~97 lbs @ 1.621"; Open pressure ~295 lbs @ 1.020" (coil-bind .960", max valve lift .600").
• Supports forced induction applications up to 30+ psi boost levels.
• Direct fit for head-off valvetrain upgrade; premium materials throughout.
• Designed and manufactured by GSC Power-Division for serious performance builds.
• Optimized for high-RPM engines, track use, supercharged or turbocharged systems.
• Includes both intake and exhaust spring sets matched for the application.

Specifications

• Part Number: 5012
• Kit Type: High-Pressure Ovate Conical Valve Spring Kit
• Shell: Titanium retainer, steel seats
• Installed Height: 1.621"
• Seat Pressure: ~97 lbs
• Open Pressure: ~295 lbs @ 1.020"
• Max Valve Lift: 0.600"
• Application: Ford 5.0L Coyote Gen 3/4 (2018-2025 Mustang/F-150)

Included Components

• 1x Complete conical spring set (intake & exhaust) for all 8 cylinders
• 8x Titanium retainers
• 8x Hardened seats
• Installation instructions and specification sheet

Product Description

The GSC Power Division 5012 valve spring kit is built for high-demand Ford Coyote 5.0L Gen 3 and Gen 4 engines--specifically 2018-2025 Mustang GT/Bullitt/Mach 1 and 2018-2025 F-150 5.0L. Designed for serious performance builds, this kit features ovate conical springs, titanium retainers and hardened seats to handle elevated RPMs, high boost levels and high-lift camshafts.

With installed seat pressures around 97 lbs and open pressures near 295 lbs, the 5012 ensures valvetrain stability, reduces rocker bounce and allows you to safely push the Coyote platform harder. Because this is a head-off upgrade, it's essential to verify your engine variant, cam specs and valve geometry before purchase. Ideal for track cars, supercharged or turbocharged setups and high-RPM applications.