GSC Power Division 5011 High-Pressure Valve Springs for 11-17 Mustang/F150 5.0L

Vehicle Fitment

• 2011-2017 Ford Mustang GT / Boss 302 (5.0 L Coyote Gen 1/Gen 2)
• 2011-2017 Ford F-150 (5.0 L Coyote Gen 1/Gen 2)

Fitment Notes

• High-pressure valve spring kit for Ford 5.0L Coyote Gen 1/Gen 2 engines requiring elevated boost/lift.
• Installation requires cylinder head removal, correct spring install height and confirmation of valve geometry.
• Verify your camshaft lift, valve train clearances and engine generation before purchase.

Features

• Ovate conical spring design for stability at high rpm and forced induction.
• Titanium retainers and hardened seats included for durability under extreme conditions.
• Installed pressure ~124 lbs @ 1.536"; open pressure ~299 lbs @ 1.006".
• Designed to support up to 60+ psi boost with proper supporting modifications.
• Full set for intake and exhaust valves, optimized for high-lift camshafts.
• Manufactured by GSC Power Division for serious performance builds.
• Tuned for track use, high RPM and turbo/supercharge performance environments.
• Includes spring seats and complete hardware to match the 5.0L Coyote valvetrain architecture.

Specifications

• Part Number: 5011
• Kit Type: High-Pressure Ovate Conical Valve Spring Kit
• Max Valve Lift: 0.530"
• Installed Height: 1.536"
• Seat Pressure: ~124 lbs at install height
• Open Pressure: ~299 lbs at 1.006" lift
• Application: Ford 5.0L Coyote Gen 1/Gen 2 (2011-17 Mustang/F-150)

Included Components

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

Product Description

The GSC Power Division 5011 valve spring kit is engineered for 2011-2017 Ford Mustang GT/Boss 302 and F-150 trucks powered by the 5.0 L Coyote Gen 1/Gen 2 engine. Designed for high-RPM builds or forced-induction setups, this kit features ovate conical valves springs, titanium retainers and hardened seats to ensure valvetrain stability under extreme conditions.

With an installed seat pressure around 124 lbs and open pressure near 299 lbs, the 5011 enables serious performance upgrades including elevated boost or high-lift camshafts. Installation involves cylinder head removal and proper valvetrain setup, making it ideal for builders upgrading their Coyote engine for track use or heavy duty performance.