SKU: 2004-01 | UPC: GSC2004-01
GSC P-D Mitsubishi 4G63T Evo 1-9 Chrome Polished Intake Valve – 35mm Head (+1mm) – Single 1992-2006 Lancer Evolution
The GSC P-D Chrome Polished Intake Valve with 35mm head and +1mm stem fits Mitsubishi 4G63T engines in Lancer Evolution 1-9 models from 1992 to 2006. This single valve increases airflow over stock while handling high boost and RPM demands in performance setups. Its forged design supports turbocharged builds for reliable power gains.
Key Features
- Chrome Polished Stem Top: Transfers heat away from the valve faster to prevent overheating during extended high RPM operation
- 35mm Head Diameter: Larger than stock 34mm for greater intake volume and improved throttle response in modified 4G63T engines
- +1mm Stem Length: Matches aftermarket MLS head gaskets and high lift cams without clearance issues
- One-Piece Forged Stainless Steel: Delivers strength without welds to withstand 40+ psi boost levels
- 5.96mm Swirl Polished Stem: Reduces friction and improves oil metering for longer life in aggressive valvetrain setups
Product Notes
- Sold as single valve. Order eight for complete Evo 4G63T cylinder head
- Direct replacement for OEM valve PN MD183398 or equivalent
- Store in protective sleeve to avoid surface damage
Installation Notes
- Professional installation recommended.
- Check valve to guide clearance before final assembly
- Compatible with OEM seats guides and aftermarket springs up to 70lb seat pressure
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1992-1993 | Mitsubishi | Lancer Evolution | I (4G63T) |
| 1994-1995 | Mitsubishi | Lancer Evolution | II (4G63T) |
| 1995-1996 | Mitsubishi | Lancer Evolution | III (4G63T) |
| 1996-1998 | Mitsubishi | Lancer Evolution | IV (4G63T) |
| 1998-1999 | Mitsubishi | Lancer Evolution | V (4G63T) |
| 1999-2001 | Mitsubishi | Lancer Evolution | VI (4G63T) |
| 2001-2002 | Mitsubishi | Lancer Evolution | VII (4G63T) |
| 2003-2005 | Mitsubishi | Lancer Evolution | VIII (4G63T) |
| 2005-2006 | Mitsubishi | Lancer Evolution | IX (4G63T) |
Why Choose GSC?
- GSC Power-Division builds valvetrain parts for World Rally Championship and drag teams
- Each valve undergoes rigorous testing for 10 000 RPM durability
- Machined in USA with micron-level tolerances for perfect seating
Frequently Asked Questions
- Q: Will this valve fit USDM Evo 8 and 9 models?
A: Yes it fits all 4G63T Evo 1-9 including USDM 2003-2006 Lancer Evolution VIII IX GSR MR RS FQ360 - Q: What material is used in this intake valve?
A: Special high nickel stainless steel blend with chrome polished top rated for 900 degree F operation - Q: What warranty coverage applies?
A: Limited lifetime warranty 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 plastic sleeve in 7 x 1 x 1 inch box
- Weight: 0.15 lbs
