GSC P-D Subaru/Scion BRZ/FR-S FA20 21-4N Chrome Polished Intake Valve - 35mm Head (STD) - Single - 2122-01
$31.97
sku
gsc2122-01
More than 2 in stock
Upgrade your Subaru BRZ or Scion FR-S with the GSC P-D Single 35mm Head (STD) 21-4N Chrome Polished Intake Valve, designed for the FA20 engine from 2013 onwards. This high-performance intake valve is engineered to enhance your vehicle's power and efficiency, ensuring a smoother and more responsive driving experience.
**Key Benefits and Features:**
- **Enhanced Airflow:** The swirl-polished head design ensures smoother airflow, optimizing engine performance and boosting power output.
- **Lightweight Design:** The back-cut valve reduces weight, allowing for higher RPMs and improved performance under high boost pressures. This feature supports more aggressive cam profiles without increasing valve spring seat pressures.
- **Durability and Longevity:** Made from modified 21-4N stainless steel, these intake valves are built to withstand high heat, ensuring long-lasting performance even under extreme conditions.
- **Smooth Operation:** Micro-polished valve stems reduce oil retention, minimizing drag and ensuring smoother motion for enhanced engine efficiency.
- **Extended Lifespan:** Hardened valve tips or stelite wafer tips are designed to minimize wear, extending the life of your valve system.
- **Optimized Installation:** Adjusted valve tip lengths and keeper grooves simplify installation, reducing setup time and ensuring proper valve train geometry.
- **Compatibility:** Designed to work seamlessly with OEM or upgraded keepers/locks, providing flexibility and reliability for performance applications.
**Specifications:**
- Stem Diameter: 5.5 mm
- Overall Length: 103.25 mm
- Head Diameter: 35.00 mm
**Fitment:**
- Subaru BRZ (2013-2023)
- Scion FR-S (2013-2016)
Elevate your vehicle's performance with the GSC P-D Intake Valve, crafted for those who demand the best in sport compact performance.
GSC P-D Single 35mm Head (STD) 21-4N Chrome Polished Intake Valve Subaru BRZ | Scion FR-S FA20
When creating our new valve line we set out to create the best performance, longest lasting valves available to the aftermarket. Using advanced 3D design and simulation software, we have created a stronger and higher flowing valve head design. We flow test prototype valve heads in the specific applications to make sure we have the highest flowing valve head available on the market today. With the materials used, we have less valve distortion at the face than any of the tested designs. Less distortion allows for better sealing under extreme conditions and more consistent performance throughout the life of the valve. GSC Power-Division's new valves are sure to become the industry standard for sport compact performance valves.
Features:
- Swirl polished heads for smoother air flow over the valve
- Back cut to reduce valve weight for higher RPM, higher boost pressure, and allow for more aggressive cam profiles without increasing valve spring seat pressures
- Valve stems are??micro polished to allow for less oil retention on the stem, which creates less drag on the stem to guide for a smoother motion
- Intake valves are a modified 21-4n stainless and exhausts are a modified 23-8n stainless material for high heat capacity while maintaining longevity
- Valve tips are either hardened or have a stelite wafer tip fused so that the tip is within 5 Rockwell C of the rocker or valve tappet for extended life and less wear
- Valve tip lengths - we have taken extra time to adjust tip heights on the applications to require less tipping of the valve, to maintain proper tip height for proper valve train geometry, and to cut down on install times when setting valve lash
- We have also adjusted the keeper groove to properly balance intake and exhaust spring pressures to reduce the use of valve spring shims and maximize performance from our spring and retainer kits
- Valves will work with an OEM keeper/lock or, when available, our upgraded keeper/lock. It is not mandatory, but it is suggested, that any valve lock not be reused on performance applications due to material grooving
- Stem Diameter (mm): 5.5
- Overall Length (mm): 103.25
- Head Diameter (mm): 35.00
- Subaru BRZ 2013-2023
- Subaru Scion FR-S 2013-2016
- 2013 Model Fitment Only
| Brand | GSC |
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