GSC Power-Division Dual Valve Spring Kit with Titanium Retainers – Subaru FA20 (86 / BRZ / FR-S / WRX)
Fits: Subaru FA20 engines – Toyota 86 / GT86 (ZN6), Subaru BRZ (ZC6), Scion FR-S and Subaru WRX FA20F (2015–2021). Fitment on the FA24 (GR86 / 2022+ BRZ) isn't confirmed, so contact us before ordering for those.
The GSC Power-Division dual valve spring kit is a complete spring and retainer upgrade for high-rpm and high-boost FA20 builds. The dual cylindrical springs use the same wire as GSC's beehive kits and are nano-peened for low fatigue loss, so they hold pressure over time.
| Brand | GSC Power-Division |
| Part number | GSC5256 |
| Installed height | IN 1.299" / EX 1.303" |
| Seat pressure | IN 102 lbs / EX 100 lbs |
| Open pressure | IN 257 lbs @ 0.846" / EX 256 lbs @ 0.850" |
| Max valve lift | 0.453" (11.5mm) |
| Coil bind | 0.782" |
| Max RPM / boost | 9,500rpm / 50psi |
What's included: 16 dual valve spring sets, 16 titanium retainers and 16 spring seats.
Also needed: fitting by a qualified engine builder, with installed height checked against your head. We recommend Denstoj rocker retainers on any FA/FB head build. A tune is required for any cam or rev limit change.
Usually dispatched within 5-14 business days. Fitment advice available. Contact us before ordering.
FAQ
Will these suit aftermarket cams?
They support up to 11.5mm (0.453") valve lift. Check your cam's lift is within that.
Are retainers included?
Yes. 16 titanium retainers and 16 spring seats are included.
What power and rpm are they good for?
GSC rates them to 9,500rpm and 50psi of boost.
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Paquetes Stage para tu Toyota 86 / Subaru BRZ (FA20)
Every part for each stage in one cart, for less than buying them separately.Toca un stage para ver exactamente qué incluye.
Stage 1
Kit de turbo + embrague
$8,643Ahorra $455
Stage 2
Kit de turbo + Embrague y volante motor + Sistema de combustible + Semiejes
$11,492Ahorra $605
Stage 3
Kit de turbo + Combustible + Embrague + Semiejes + Bloque corto forjado
$20,583Ahorra $1,084
Stage 4
Kit de turbo + Combustible + Embrague de doble disco + Semiejes + Bloque largo forjado
$25,333Ahorra $1,334
¿No sabes qué stage encaja con tu preparación? Escribe a sales@boostedengineering.com.auTodos los paquetes
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Best place for getting your ride tuned. Very helpful and professional will be going back after doing some upgrades down the track
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