GSC P-D 4G63 Manganese Bronze Exhaust Valve Guide – Set 8

SKU: 3001-8

GSC P-D 4G63 Manganese Bronze Exhaust Valve Guide – Set 8 for 1990-2006 Eclipse Talon Lancer Evo Galant Laser

GSC Power-Division manganese bronze exhaust valve guides deliver direct replacement for 4G63 cylinder heads in performance DSM and Evo builds. This set of 8 fits Mitsubishi Eclipse GST GSX Talon TSi Galant VR4 Lancer Evolution Plymouth Laser and more for years 1990-2006. Manganese bronze construction handles extreme heat from turbo exhaust valves while tighter clearances cut oil consumption and seal better under boost.

Key Features

• Manganese Bronze Material: High thermal conductivity dissipates exhaust heat fast to protect valves in turbocharged 4G63 applications
• Tighter Clearances: Reduced stem to guide clearance minimizes oil burning improves ring seal and extends engine life
• Precision Machined: .3735 inch ID x .500 inch OD x 1.378 inch length matches OEM specs with performance tolerances
• Direct OEM Replacement: Drop-in fit for all 4G63 SOHC DOHC heads no modifications needed
• Complete Exhaust Set: 8 guides cover full exhaust side for balanced flow and durability in racing

Product Notes

• Pair with GSC exhaust valves for optimal stem clearance and longevity
• Inspect head for wear before installation
• Packed in protective tube for damage-free delivery

Installation Notes

• Professional installation recommended.
• Hone guides to 0.0015-0.0025 inch clearance for 8mm stems using dedicated 4G63 reamer
• Compatible with factory or ported 4G63 heads no special hardware required

This Part Fits

Year	Make	Model	Submodel
1990-1998	Eagle	Talon	TSi
1990-1994	Mitsubishi	Eclipse	GS
1990-1999	Mitsubishi	Eclipse	GST
1990-1999	Mitsubishi	Eclipse	GSX
1996-1999	Mitsubishi	Eclipse	Spyder GST
1991-1992	Mitsubishi	Galant	VR-4
2005-2006	Mitsubishi	Lancer	Evolution
2005-2006	Mitsubishi	Lancer	Evolution MR
2005-2006	Mitsubishi	Lancer	Evolution RS
2006	Mitsubishi	Lancer	Evolution SE
1990-1994	Plymouth	Laser	RS

Why Choose GSC Power-Division?

• Engineered for 4G63 race teams in drag road race and rally
• CNC machined from aerospace grade alloys
• Tested in 40+ psi boost 9000 RPM builds

Frequently Asked Questions

• Q: Will these fit 2005-2006 Mitsubishi Lancer Evolution IX heads?
  A: Yes direct fit for all 4G63 variants including Evo 8 9 Evolution MR RS SE models
• Q: What makes manganese bronze right for exhaust guides?
  A: Manganese bronze offers better heat transfer and wear resistance than cast iron holding up to hot exhaust gases and sodium exhaust valves
• Q: What warranty applies?
  A: GSC provides warranty against manufacturing defects when installed by certified shop

Shipping & Handling

• Method: Standard ground shipping
• Availability: In stock – ships same or next business day
• Packaging: Secure tube in 6 x 4 x 2 inch box
• Weight: 0.8 lbs