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SKU: 3032.001-1
GSC Power-Division Toyota 1JZ/2JZ 1990-2005 Manganese Bronze Intake Valve Guide +.001in Oversize OD - Single
Upgrade your Toyota 1JZ or 2JZ engine with the GSC Power-Division manganese bronze intake valve guide featuring +0.001in oversize outer diameter. Designed for cylinder heads requiring guide bore repair this single guide restores proper valve stem clearance in performance 2JZ-GTE Supra and 1JZ-GTE applications. Engineered for durability under high RPM and boost levels it supports reliable power gains in tuned builds.
Key Features
- Manganese Bronze Material: C67400 alloy provides superior wear resistance and heat dissipation compared to standard phosphor bronze guides extending service life in aggressive cam and turbo setups
- +0.001in Oversize OD: 13.025mm outer diameter (nominal 13.000mm) fits machined guide bores precisely preventing oil leaks and valve wobble for consistent seal and performance
- Precision ID Tolerance: 8.035mm inner diameter honed for 8mm valve stems ensures minimal friction and optimal oil metering in OEM or aftermarket valves
- Guide Length: 35.00mm (1.378in) matches factory specs for drop-in compatibility in 24-valve 1JZ/2JZ heads without seat interference
- Single Unit Design: Sold individually allows targeted replacement in damaged heads saving cost on full sets for custom rebuilds
Product Notes
- Machine cylinder head guide bores to accept oversize OD prior to installation
- Use with GSC or compatible valve seals for best results
- Packaged securely to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Ream head bore to 13.025mm using GSC-specified tooling for interference fit
- Compatible with frozen or press-fit installation methods and OEM valve seats
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1993-2002 | Toyota | Supra | Base / Turbo (2JZ-GTE / 2JZ-GE) |
| 1998-2005 | Lexus | GS300 | Base (2JZ-GE) |
| 1991-2004 | Toyota | Aristo | 500 / V300 (2JZ-GTE) |
| 1990-2001 | Toyota | Chaser | JZX90 / JZX100 Tourer V (1JZ-GTE / 1JZ-GE) |
| 1992-2000 | Toyota | Mark II | Tourer V (1JZ-GTE / 1JZ-GE) |
| 1991-2000 | Toyota | Soarer | Z30 (1JZ-GTE) |
| 2001-2005 | Lexus | IS300 | Base (2JZ-GE) |
Why Choose GSC Power-Division?
- Engineered and machined in the USA for JDM performance engines with race-proven reliability
- Valvetrain components trusted in 1000+hp 2JZ builds worldwide
- CNC precision tolerances reduce failures in high-boost valvetrain setups
Frequently Asked Questions
-
Q: Which Toyota engines does this valve guide fit?
A: Fits all 24-valve Toyota 1JZ-GE/GTE and 2JZ-GE/GTE cylinder heads including Supra Aristo Chaser and Soarer models from 1990-2005 -
Q: What is the material and why manganese bronze?
A: Made from C67400 manganese bronze alloy for higher strength hardness and thermal conductivity than traditional bronze reducing wear on high-performance valve stems -
Q: Does this require special installation tools or warranty details?
A: Requires guide bore machining and professional install. Backed by GSC one-year unlimited mileage warranty against manufacturing defects
Shipping & Handling
- Method: USPS First Class or UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective bubble wrap in 4in x 3in x 1in box
- Weight: 0.1 lbs
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