GSC Exhaust Valve Guide w/ Stopper – Standard Single for Mitsubishi 4G63T – GSC3003
GSC Power-Division’s stopper-style exhaust valve guide is built for Mitsubishi 4G63T engines, offering precise fitment and durability under high-performance conditions. This standard-size guide is sold individually and is ideal for valvetrain refreshes or targeted replacements.
Oversized options (+0.001" and +0.003") are available separately to support custom machining and tighter clearance needs.
GSC3003 Standard Dimensions:
- Total Length: 1.950 in / 49.53 mm
- Outer Diameter: 0.4750 in / 12.07 mm
- Valve Stem Diameter: 6.6 mm
Perfect for DSM and Evo platforms, this guide ensures stable valve control and long-term reliability in turbocharged setups.
Fitment:
- 1990 - 1999 Mitsubishi Eclipse GSX
- 1991 - 1992 Mitsubishi Galant VR-4
- Mitsubishi Lancer Evolution I–IX (4G63T-equipped)
- 2003 - 2005 Mitsubishi Lancer Evolution VIII
- 2006 Mitsubishi Lancer Evolution IX
- 1990 - 1998 Eagle Talon TSi AWD
- 1990 - 1994 Plymouth Laser RS Turbo
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
