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SKU: 3091-12
GSC Power-Division Toyota 1JZ Manganese Bronze Exhaust Valve Guide - SET OF 12 (1990-2004 JZX90/100 Models)
GSC Power-Division manganese bronze exhaust valve guides fit Toyota 1JZ-GE and 1JZ-GTE engines in JDM chassis like Chaser JZX90/100, Mark II JZX90/100, and Cresta JZX90/100. This set of 12 replaces stock guides with material that handles extreme heat and boost for reliable valve sealing in turbo setups. Ideal for 1JZ builds pushing high RPM and power levels.
Key Features
- Manganese Bronze Construction: Provides high thermal conductivity and wear resistance for exhaust-side durability under sustained high temperatures.
- Precision Machined Tolerances: Ensures exact fit in 1JZ cylinder heads for minimal valve wobble and consistent performance.
- Complete Set of 12: Matches the 1JZ inline-six exhaust valve count for full engine coverage in one package.
- High-Performance Design: Engineered for turbocharged 1JZ-GTE applications with improved guide life over phosphor bronze.
- Direct OEM Replacement: Compatible with stock heads, GSC valves, and standard 7.98mm guide bore for 1JZ exhaust valves.
Product Notes
- Pair with new valve seals during installation for optimal oil control.
- Inspect cylinder head guide bosses for damage prior to pressing new guides.
- Packaged securely to prevent shipping damage on small precision parts.
Installation Notes
- Professional installation recommended.
- Requires guide driver tool and heat block for press-fit into aluminum head.
- Compatible with stock 1JZ heads. no machining needed for standard bore.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1992-2001 | Toyota | Chaser | JZX90/JZX100 1JZ-GTE |
| 1992-2001 | Toyota | Cresta | JZX90/JZX100 1JZ-GTE |
| 1992-2004 | Toyota | Mark II | JZX90/JZX100 1JZ-GTE Tourer V |
| 1990-2000 | Toyota | Soarer | JDM 1JZ-GTE |
| 1993-2004 | Toyota | Progres | 1JZ-GE/GTE |
Why Choose GSC Power-Division?
- Proven in drag racing and drift with 1JZ valvetrain components.
- USA-made with aerospace-grade materials and CNC machining.
- Backed by extensive dyno testing for real-world 1JZ reliability.
Frequently Asked Questions
-
Q: Which Toyota 1JZ engines are compatible?
A: Fits all 1JZ-GE and 1JZ-GTE variants including non-VVTi and VVTi in JZX90/100 chassis. confirm head casting. -
Q: Why manganese bronze for exhaust guides?
A: Delivers better heat dissipation and strength than stock phosphor bronze, reducing wear in hot exhaust ports. -
Q: What tools are needed for install?
A: Valve guide press, seal installer, and head holding fixture. machine shop service advised for alignment.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact cardboard box 6in x 4in x 2in
- Weight: 0.65 lbs
GSC Power Division
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