-14%
Click to zoom in
SKU: 2001-8 | UPC: GSC2001-8
GSC P-D 4G63T Evo 1-9 / 90-98 DSM Chrome Polished Exhaust Valve - 30.5mm Head (STD) - SET 8
GSC Power-Division P-D series exhaust valves fit 4G63T engines in Mitsubishi Lancer Evolution 1-9 and 1990-1998 DSM vehicles including Eclipse GST GSX Talon TSi Galant VR-4. This set of 8 chrome polished valves drops in with 30.5mm standard head diameter to handle high boost while boosting exhaust flow and cutting guide wear. Perfect for turbo rebuilds demanding reliable power in 4G63T setups.
Key Features
- One-Piece Forged Construction: Handles extreme heat and RPM without flexing for consistent operation
- Chrome Polished Stems: Cuts friction against guides to extend valve train life during long sessions
- Swirl Polished Heads: Promotes smoother exhaust evacuation and resists carbon deposits
- Exact Specifications: 30.5mm head diameter 6.98mm stem diameter 108.51mm overall length 8mm seat width 0.5mm x 45°. margin
- Heat Treated Alloy: Resists fatigue in turbocharged 4G63T applications for repeated high power runs
Product Notes
- Full set of 8 exhaust valves for complete cylinder head refresh
- Apply assembly lube to stems prior to installation for smooth break-in
- Shipped in protective foam-lined box to arrive undamaged
Installation Notes
- Professional installation recommended.
- Machine valve seats to 30.5mm head with 0.5mm margin for proper sealing
- Works with OEM retainers seals and aftermarket dual springs
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?
- Used by drag teams in 4G63T record-setting builds
- Built in USA with incoming and outgoing inspections
- Engineered from racer feedback for real-world durability
Frequently Asked Questions
-
Q: Do these fit 2003-2006 US Evo 8/9 models?
A: Yes covers Evo 1-9 4G63T including 2005-2006 Lancer Evolution MR RS SE -
Q: What material and finish details?
A: Heat treated one-piece forged steel swirl polished heads chrome polished stems for flow and wear resistance -
Q: What warranty coverage?
A: 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: Foam protected OEM box 12 x 8 x 2 inches
- Weight: 1.95 lbs
Read More
GSC Power Division
The GSC Power Division collection showcases top-of-the-line valve train components meticulously engineered for the automotive performance aftermarket. Our range includes high-performance camshafts and valvetrain components designed to elevate your vehicle's performance to the next level. Why Choose GSC Power Division? Our GSC Power Division Cylindrical Valve Springs are the most economical solution for maintaining your valvetrain integrity, particularly compatible with most S1 or S2 GSC cam profiles. Whether you're a daily driver or a weekend warrior with a hot rod, these valve springs provide the essential spring pressure needed for high mileage reliability without stretching your budget. Key Features High-Quality Construction: Crafted with lightweight retainers made from premium Grade 5 titanium, our products ensure that quality and performance are never compromised. Optimal Performance: In flat tappet engines, careful consideration of spring pressure can significantly enhance ...
View GSC Power Division Products
Valves
Welcome to our Valves collection, where quality meets functionality. Our carefully curated selection includes a variety of valves suited for different applications and industries. Whether you are in construction, manufacturing, or plumbing, we have the perfect valve solutions for you. Why Choose Our Valves? High Quality: Each valve in our collection is manufactured to meet strict quality standards, ensuring durability and reliability. Wide Range: We offer a diverse range of valves. Competitive Pricing: Get the best value for your money with our competitively priced valves without compromising on quality. Expert Support: Our knowledgeable team is here to help you find the right valve for your specific needs. Applications of Our Valves Our valves are versatile and can be used in a variety of engines for various makes and modles. Shop Now! Explore our Valves collection today and find the perfect solution for your project. With our user-friendly Shopify store, shopping for valv...
View Valves Products
Valves & Components
Browse all of our valves and valvetrain components at Black Ops Auto Works, including engine valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, lash caps, and related valvetrain hardware for performance builds, engine refreshes, and high-horsepower applications. Whether you are rebuilding a cylinder head, upgrading your valvetrain for higher RPM, or replacing worn valve train components, this collection is built for customers searching for engine valves, valve springs and retainers, valve cover gaskets, performance valve covers, and valvetrain upgrades. Shop Top Valvetrain Brands Find trusted brands in the valve and valvetrain category, including: GSC Power Division Supertech Brian Crower Ferrea Manley Performance Cometic Granatelli Moroso BLOX Racing These brands are known for performance intake valves, exhaust valves, valve spring kits, titanium retainers, valve guides, valve locks, valve seals, billet valve covers, an...
View Valves & Components Products