GSC Power Division Exhaust Valve – Standard Size Stainless Steel, Set of 8 for 5.0L Coyote Gen 3 - GSC2161-8
Built for the 5.0L Coyote Gen 3 engine, this set of eight standard-size stainless steel exhaust valves from GSC Power Division is engineered for high-performance durability and precision. Manufactured from modified 23-8n stainless steel, these valves are designed to thrive under extreme heat and high-RPM conditions—ideal for turbocharged and track-focused builds.
Each valve features a 45° seat contact angle, a departure from the OEM 40°, which requires a valve job for proper sealing and valvetrain geometry. GSC uses advanced 3D modeling and simulation software to develop a high-flow valve head that resists distortion under pressure, ensuring consistent performance and reliable sealing throughout the valve’s lifespan.
Key Features:
- Back-Cut Profile: Reduces valve mass to support higher RPM operation
- Micro-Polished Stems: Minimize oil retention and reduce friction for smoother guide movement
- Premium Stainless Steel: Crafted from modified 23-8n alloy for superior strength and heat resistance
- Stellite-Tipped Ends: Hardened or fused tips maintain geometry and resist wear within 5 Rockwell C
- Balanced Keeper Groove: Calibrated to equalize spring pressure and reduce the need for shims
- OEM-Compatible Locks: Works with factory keeper systems; new locks recommended for performance builds
- Built for Reliability: Backed by GSC’s reputation for precision and long-term durability
Valve Dimensions:
- Head Diameter: 1.260 in / 32.00 mm
- Total Length: 4.315 in / 109.60 mm
- Stem Diameter: 0.235 in / 5.96 mm
- Sold as a complete set of 8
Fitment:
- 2018 Ford Mustang GT
- 2019 Ford Mustang GT
- 2020 Ford Mustang GT
- 2021 Ford Mustang GT
- 2022 Ford Mustang GT
- 2023 Ford Mustang GT
- 2018 Ford F-150 5.0L
- 2019 Ford F-150 5.0L
- 2020 Ford F-150 5.0L
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
