GSC Exhaust Valve Guide w/ Stopper – Toyota G16E-GTS – GSC3147
Standard Exhaust Valve Guide for G16E-GTS Engines
The GSC Power-Division Exhaust Valve Guide is precision-machined for Toyota G16E-GTS cylinder heads. Designed with a stopper-style profile and a 5.5mm valve stem fitment, this guide ensures secure seating and helps prevent valve guide movement under high-RPM conditions.
Fitment and Options
Sold individually. A complete exhaust-side setup requires 6 guides. Oversized options are available separately in +0.001" and +0.003" for tighter tolerances or custom-machined heads.
Key Features
- Standard sizing for direct-fit replacement
- Stopper-style design for quick install and anti-drop protection
- 5.5mm valve stem compatibility for G16E-GTS platforms
Specifications
| Stem Diameter | Total Length | Outer Diameter | Protrusion Height |
|---|---|---|---|
| 5.5mm / 0.2165" | 47mm / 1.850" | 10.34mm / 0.407" | 13.08mm / 0.515" |
Fitment:
- 2021–2025 Toyota GR Corolla 1.6L Turbo Inline-3 (G16E-GTS)
- 2020–2025 Toyota GR Yaris 1.6L Turbo Inline-3 (G16E-GTS, international markets)
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