GSC Power Division Exhaust Valve – Standard Size Super Alloy, Set of 8 for Gen 3 Coyote 5.0L - GSC2165-8
This set of eight standard-size super alloy exhaust valves from GSC Power Division is built for 2018–2023 Ford Mustang GT models equipped with the Gen 3 5.0L Coyote engine. Designed to handle extreme heat and high-RPM stress, these valves are ideal for turbocharged applications and performance builds.
Each valve features a 45° seat contact angle—an upgrade from the OEM’s 40°—which requires a valve job for proper sealing and optimized valvetrain geometry. Using advanced 3D modeling and simulation software, GSC engineers a high-flow valve head that’s tested in real-world applications to ensure maximum performance. The result is reduced face distortion, better sealing under pressure, and consistent output over time.
Key Features:
- Improved Airflow: Enhanced valve head design promotes better engine breathing and power delivery
- Back-Cut Profile: Reduces valve weight to support higher RPM operation
- Micro-Polished Stem: Minimizes oil retention and drag for smoother guide movement
- Super Alloy Build: Engineered to withstand 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
- 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
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