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SKU: 3003.001-1
GSC Power-Division Mitsubishi 4G63T Manganese Bronze Exhaust Valve Guide Stopper Style +.001in OD - Single (1990-1999 DSM)
This GSC Power-Division valve guide delivers exact fitment for Mitsubishi 4G63T turbo engines in 1990-1999 DSM vehicles including Eclipse GST/GSX and Talon TSi. Crafted from manganese bronze it handles extreme heat and high RPM operation in performance builds. Sold as a single unit for targeted repairs or custom setups.
Key Features
- Manganese Bronze Material: Provides high wear resistance and thermal conductivity for long life under boost and heat
- Stopper Style Design: Locks guide at precise depth to prevent valve seal issues and ensure reliable sealing
- +.001in OD Sizing: Matches tight tolerance bores in honed heads for minimal clearance and optimal performance
- Exhaust-Specific Engineering: Tailored for 4G63T exhaust valves with 7mm stems in DSM turbo applications
- Precision Machined: CNC tolerances hold +/- 0.0005in for drop-in compatibility in race and street builds
Product Notes
- Inspect head bore before installation to confirm +.001in OD fit
- Clean with non-abrasive solvent and avoid impacts during handling
- Ships in protective packaging to prevent damage
Installation Notes
- Professional installation recommended.
- Ream head guide bore to match +.001in OD using GSC reamer tool
- Compatible with stock or aftermarket 7mm stem exhaust valves
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1990-1994 | Mitsubishi | Eclipse | GST |
| 1990-1994 | Mitsubishi | Eclipse | GSX |
| 1995-1999 | Mitsubishi | Eclipse | GST |
| 1995-1999 | Mitsubishi | Eclipse | GSX |
| 1990-1994 | Eagle | Talon | TSi |
| 1995-1999 | Eagle | Talon | TSi |
| 1990-1992 | Plymouth | Laser | RS Turbo |
Why Choose GSC Power-Division?
- Proven in drag racing and time attack with DSM teams worldwide
- High-strength alloys tested to 1000+hp levels
- USA-made with micrometer-controlled machining for consistent results
Frequently Asked Questions
-
Q: Does this fit 2G DSM 4G63T heads?
A: Yes fits 1995-1999 Eclipse GST/GSX and Talon TSi turbo models with 7mm exhaust valves -
Q: What makes manganese bronze better for exhaust guides?
A: Manganese bronze resists galling and oxidation at high exhaust temps up to 1600F while maintaining tight valve stem clearances -
Q: Is professional machining required?
A: Head guide bores must be reamed precisely to +.001in OD using dedicated tools for proper press fit
Shipping & Handling
- Method: USPS First Class or UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective bubble wrap in 4x4x1 inch box
- Weight: 0.1 lbs
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