GSC Exhaust Valve Guide – Toyota 1FZ – GSC3107
Precision-Machined Exhaust Valve Guide for Toyota 1FZ
The GSC Power-Division Standard Exhaust Valve Guide is built for Toyota 1FZ engines and features a smooth-style finish for optimal valve stem support. Designed to meet OEM specs, this guide delivers reliable performance in both stock and high-output builds.
Fitment and Options
Sold individually or in sets of 12. A complete head requires 12 guides. For tighter tolerances or freshly machined heads, oversized options are available in +0.001" and +0.003".
Key Features
- OEM-style smooth finish for consistent valve stem alignment
- Standard sizing for direct replacement or rebuilds
- Oversized variants available for custom fitment
Specifications
| Stem Diameter | Total Length | Outer Diameter |
|---|---|---|
| 7.0mm | 41.91mm / 1.650" | 11.54mm / 0.4545" |
Fitment:
- 1993–1997 Toyota Land Cruiser 4.5L DOHC Inline-6 (1FZ-FE)
- 1993–1997 Lexus LX 450 4.5L DOHC Inline-6 (1FZ-FE)
- 1992–1997 Toyota Land Cruiser HDJ80/HDJ81 4.5L DOHC Inline-6 (1FZ-FE, non-US markets)
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

