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SKU: 2163-8
GSC Power-Division Ford Mustang 2018-2023 5.0L Coyote Gen 3 33mm Head (+1mm) Chrome Polished Exhaust Valve - Set of 8
Equip your Ford Mustang GT with this set of 8 GSC Power-Division exhaust valves designed for the 5.0L Coyote Gen 3 engine in 2018-2023 models. The +1mm oversized 33mm head diameter and chrome polished stems improve exhaust flow and reduce friction for greater power and reliability in performance applications. These one-piece forged valves handle high RPM and boost levels with precision engineering.
Key Features
- +1mm Oversized 33mm Head: Expands exhaust flow area for increased horsepower while preserving port velocity
- Chrome Polished Stems: Cuts guide wear by 50 percent and enhances heat transfer to prevent valve flutter
- One-Piece 21-4N Stainless Steel: Delivers strength for aggressive cams and turbo setups up to 40 psi
- Swirl Polished Heads: Smooth finish optimizes gas flow dynamics for quicker spool and top-end power
- Precision Dimensions: 110mm length +/- 0.005 inch, 7.98mm stem, 1.95mm margin for drop-in stem fit
Product Notes
- Valve seats must be machined to accept +1mm head size
- Pair with GSC valve springs for full valvetrain stability
- Ships as special order in protective OEM-style packaging
Installation Notes
- Professional installation recommended.
- Valve seat machining required at a performance machine shop
- Compatible with Coyote Gen 3 cylinder heads stock or ported
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018-2023 | Ford | Mustang | GT 5.0L |
| 2018-2021 | Ford | F-150 | 5.0L |
| 2018-2020 | Ford | Expedition | 5.0L |
| 2019-2022 | Ford | F-250 Super Duty | 5.0L |
Why Choose GSC Power-Division?
- Motorsport-proven in NHRA and NASA racing classes
- USA-made with tolerances holding under +/- 0.0005 inch
- Valvetrain components trusted by Ford performance builders
Frequently Asked Questions
-
Q: Do these fit 2018-2023 Mustang GT 5.0L Coyote Gen 3?
A: Yes, exact fit for Gen 3 heads in Mustang GT, F-150, Expedition, and Super Duty 5.0L models -
Q: What material and finish do the valves have?
A: Forged 21-4N stainless steel with 360-degree chrome polish on stems and swirl polish on heads -
Q: Is head machining needed and what is the warranty?
A: Yes, machine seats for 33mm head. GSC offers limited lifetime warranty against manufacturing defects
Shipping & Handling
- Method: UPS Ground
- Availability: Special order ships within 3-5 business days
- Packaging: Protective box 12 x 8 x 2 inches
- Weight: 1 lb
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