GSC Power-Division +1mm Super Alloy Exhaust Valve
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GSC Power-Division +1mm Super Alloy Exhaust Valve - Subaru BRZ (ZC6) / Toyota 86
GSC Power-Division builds valvetrain componentry for engines running serious heat and boost, and the Super Alloy Exhaust Valve is built for exactly that brief. Designed for the FA20 engine in the Subaru BRZ and Toyota 86, it's engineered to survive sustained exhaust gas temperatures around 1090°C (2000°F) without losing sealing integrity, making it a solid choice for high horsepower, high EGT builds.
This listing covers the Subaru BRZ (ZC6) and Toyota 86 (ZN6) fitted with the FA20 engine. Sold in a full set of 8 (SKU GSC2123-8) or as a single valve (SKU GSC2123-01) — use the variant selector on this listing to choose the quantity that suits your build.
Specifications
- Valve size: +1mm oversize, 30mm head diameter
- Material: GSC Super Alloy, rated for sustained EGT around 1090°C (2000°F)
- Chrome polished valve stems for smooth, durable finish and improved lubricity
- Recommended pairing: GSC manganese bronze valve guides
- Under head dish maximised for reduced reciprocating weight
- Swirl polished and backcut heads for improved airflow without sacrificing durability
- Available as a set of 8 (SKU GSC2123-8) or single valve (SKU GSC2123-01)
Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please confirm your vehicle's model year and engine configuration before ordering.
Not sure if this valve set suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
| Make | Model | Chassis | Engine |
|---|---|---|---|
| Subaru | BRZ | ZC6 | FA20 |
| Toyota | 86 | ZN6 | FA20 |
Technical Specifications
| Spec | Value |
|---|---|
| Valve Size | +1mm (30mm) |
| Material | Super alloy |
| Stem Finish | Chrome polished |
| Head Finish | Swirl polished and backcut |
| Engine Application | FA20 |
| Set Quantity (Std) | 8 valves |
| Set Quantity (Single) | 1 valve |
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