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SKU: 3004.001-1
GSC P-D Mitsubishi 4G63 (.001+) Stopper Style Intake Valve Guide - (Single) 1990-1999 Eclipse Talon Laser
Enhance your Mitsubishi 4G63 valvetrain with this GSC Power-Division stopper style intake valve guide sized +0.001 inch oversize sold as a single unit. Designed for 1990-1999 DSM vehicles including Eclipse GSX Talon TSi and Laser Turbo it locks securely into the cylinder head. Ideal for race builds with stiff springs and big cams this guide delivers consistent valve sealing and reduced wear under extreme conditions.
Key Features
- Stopper Design: Flange on bottom locks guide in place to resist high spring pressures and prevent insertion into head during operation
- +0.001" Oversize: Provides exact stem-to-guide clearance for oversized valves in rebuilt performance 4G63 engines
- Manganese Bronze Material: Delivers superior wear resistance heat dissipation and longevity in turbocharged applications
- Precision CNC Machined: Tight tolerances ensure drop-in fit and optimal valve action for high-revving motors
- Sold Individually: Allows replacement of worn guides without buying full sets saving time and cost on repairs
Product Notes
- Pair with matching exhaust guides and oversized valves for complete valvetrain refresh
- Inspect all guides during head work and replace as needed for even wear
- Special order item with manufacturer direct fulfillment
Installation Notes
- Professional installation recommended.
- Hone guide bores to +0.001" using dedicated 4G63 tool kit before installation
- Compatible with OEM or aftermarket DOHC 4G63 heads requires valve seat machining for oversize
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1990-1994 | Mitsubishi | Eclipse | GSX GST |
| 1990-1994 | Eagle | Talon | TSi |
| 1990-1994 | Plymouth | Laser | Turbo RS |
| 1995-1999 | Mitsubishi | Eclipse | GSX GST |
| 1995-1999 | Eagle | Talon | TSi |
| 1988-1992 | Mitsubishi | Galant | VR-4 |
Why Choose GSC Power-Division?
- Proven in drag racing and road race 4G63 builds worldwide
- USA-made with focus on motorsport durability
- Engineered specifically for modified turbo engines
Frequently Asked Questions
-
Q: Will this fit Lancer Evolution 4G63 heads?
A: Designed for DSM 7-bolt and Galant 4G63 DOHC heads Evolution models use GSC Evo-specific guides like 3610 series confirm your head casting -
Q: What valves pair with this +0.001 guide?
A: Matches valves with 7.980-7.982mm stems including Ferrea GSC or Supertech +0.001 options for proper 0.001-0.002 inch clearance -
Q: What warranty applies?
A: GSC offers limited lifetime warranty on valve guides against manufacturing defects when installed by certified shop
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Protective padded envelope 4 x 4 x 1 inches
- Weight: 0.1 lbs
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