GSC Power-Division Exhaust Valve
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GSC Power-Division Super Alloy Exhaust Valve - Subaru BRZ/Toyota 86 (ZC6)
GSC Power-Division builds valvetrain components for engines running serious heat and boost, and the Super Alloy Exhaust Valve is engineered for FA20 owners pushing high EGTs. SKU GSC2121-8. Chrome polished stems improve lubricity and durability, while a swirl polished, backcut head design supports better airflow without giving up strength.
This listing covers the FA20 engine as fitted to the Subaru BRZ (ZC6) and Toyota 86 (ZN6). Available as a full Std set of 8 (GSC2121-8) or as a Single Valve option — select the quantity you need from the variant selector on this listing.
Key Features
- Super alloy construction rated for sustained high EGT operation
- Chrome polished stems for smoother action and added life
- Maximised under-head dish for reduced reciprocating weight
- Swirl polished, backcut head for improved airflow
- Recommended pairing with GSC manganese bronze valve guides
Vehicle compatibility and fitment notes are provided in the tabs above. Please confirm your engine code and configuration before ordering.
Not sure if this suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Product
- Stem Finish
- Chrome polished for smooth, durable finish and improved lubricity
- Recommended Valve Guide
- GSC Manganese bronze valve guides
Details
- Material
- Super Alloy
- Head Design
- Swirl-polished and backcut for improved airflow
- Under-Head Design
- Maximised dish for reduced weight
- Engine Application
- FA20
- Variant Options
- Std (Set of 8) [GSC2121-8], Single Valve [GSC2121-01]
No instructions available for this product.
Vehicle fitment
Universal fit: this part suits any car. Check the specifications above for sizes and fittings.
| Make | Model | Chassis | Years | Versions | Engine | Brakes | Position |
|---|
Can’t see your car? Ask us and we’ll check fitment for you.

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