GSC +0.003" Intake/Exhaust Valve Guide Toyota 1JZ GSC3091.003-1
Oversized Valve Guide for Toyota 1JZ Applications
The GSC Power-Division +0.003" Valve Guide is crafted for Toyota 1JZ engines and fits both intake and exhaust sides. Designed for freshly machined heads or builds requiring extra clearance, this smooth-style guide offers precise valve stem support and long-term durability in high-performance setups.
Fitment and Options
Sold individually. A full cylinder head requires 24 guides (2 sets of 12). Standard and +0.001" sizes are also available to match your builds needs.
Specifications
| Stem Diameter | Total Length | Outer Diameter |
|---|---|---|
| 6mm | 43.69mm / 1.720" | 11.04mm / 0.4347" |
Fitment:
- 1991–2001 Toyota Soarer 2.5L Twin Turbo DOHC (1JZ-GTE)
- 1992–2007 Toyota Crown Athlete 2.5L DOHC (1JZ-GTE / 1JZ-FSE)
- 1990–2005 Toyota Chaser / Mark II / Cresta 2.5L DOHC (1JZ-GTE / 1JZ-GE)
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

