GSC Power Division Exhaust Valve – Standard Size Super Alloy, Set of 8 for Ford Predator Cylinder Heads - GSC2175-8
This set of eight standard-size exhaust valves from GSC Power Division is engineered for 2021–2025 Ford Mustang Shelby GT500 models equipped with Predator cylinder heads. Built from high-strength super alloy, these valves are designed to perform under extreme heat and high-RPM conditions, making them ideal for turbocharged applications and aggressive builds.
Each valve features a 45° seat contact angle—an upgrade from the OEM’s 40°—which requires a valve job to ensure proper sealing and optimized valvetrain geometry. GSC utilizes advanced 3D modeling and simulation software to develop a high-flow valve head, tested in application-specific environments to deliver maximum airflow and minimal distortion. The result is improved sealing under pressure, enhanced power delivery, and long-term reliability.
Key Features:
- Improved Airflow: Optimized valve head design enhances engine breathing and horsepower
- Back-Cut Profile: Reduces valve mass to support higher RPM operation
- Micro-Polished Stem: Minimizes oil retention and drag for smoother movement within the guide
- Super Alloy Build: Withstands extreme temperatures and turbocharged stress
- Stellite-Tipped Ends: Hardened or fused tips resist wear and maintain geometry near the rocker or tappet
- OEM-Compatible Locks: Works with factory keeper systems; new locks recommended for performance builds
- Trusted Quality: Backed by GSC Power Division’s reputation for precision and durability
Valve Dimensions:
- Head Diameter: 1.28 in / 32.5 mm
- Total Length: 4.323 in / 109.8 mm
- Stem Diameter: 0.235 in / 5.96 mm
- Sold as a complete set of 8
Fitment:
- 2015 Ford Mustang Shelby GT350 (Voodoo 5.2L V8)
- 2016 Ford Mustang Shelby GT350 (Voodoo 5.2L V8)
- 2017 Ford Mustang Shelby GT350 (Voodoo 5.2L V8)
- 2018 Ford Mustang Shelby GT350 (Voodoo 5.2L V8)
- 2019 Ford Mustang Shelby GT350 (Voodoo 5.2L V8)
- 2020 Ford Mustang Shelby GT350 (Voodoo 5.2L V8)
- 2020 Ford Mustang Shelby GT500 (Predator 5.2L Supercharged V8)
- 2021 Ford Mustang Shelby GT500 (Predator 5.2L Supercharged V8)
- 2022 Ford Mustang Shelby GT500 (Predator 5.2L Supercharged V8)
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