-14%
GSC P-D Mitsubishi 4G63T Evo 1-9 / 90-98 DSM Valve Keeper (Set Set of 32) - Black Ops Auto Works
Click to zoom in

GSC P-D Mitsubishi 4G63T Evo 1-9 / 90-98 DSM Valve Keeper (Set Set of 32)

GSC1003
GSC1003
Valve Locks
20+ Units In Stock - Ships Next Business Day
$ 38.50 $ 32.73
$ 32.73

SKU: 1003

GSC P-D Mitsubishi 4G63T Evo 1-9 / 90-98 DSM Valve Keeper (Set of 32)

GSC Power-Division valve keepers secure valves in the 4G63T engine powering Evo 1-9 models and 1990-1998 DSM vehicles including Eclipse GST GSX Talon TSi and Galant VR4. This set of 32 provides reliable retention under high spring pressures for track or street performance builds. Engineered as a direct OEM replacement with enhanced design for demanding RPM ranges.

Key Features

  • Larger under-cut angle: Supports higher spring pressures without keepers pulling through retainers
  • 7-degree top angle: Creates secure lock onto valve stems for positive retention
  • Black nitrided finish: Increases strength fatigue resistance and durability
  • Direct replacement design: Compatible with OEM retainers and GSC retainers
  • Complete set of 32: Covers all valves in 4G63 DOHC 16-valve heads

Product Notes

  • Sold as a matched set of 32 for full engine coverage
  • Inspect retainers and springs during installation for compatibility
  • Packaged in protective box for safe transit

Installation Notes

  • Professional installation recommended.
  • Requires complete valve train disassembly and reassembly
  • Compatible with stock hardware and aftermarket dual valve 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?

  • Proven in motorsport valvetrain applications worldwide
  • CNC machined from high-strength steel for precision fit
  • Designed tested for high-RPM reliability in 4G63 builds

Frequently Asked Questions

  • Q: Will these fit all Evo 1-9 models with 4G63T?
    A: Yes covers Evo 1 through 9 including US Lancer Evolution 2005-2006 and JDM variants with DOHC 16-valve heads
  • Q: What material and finish are used?
    A: Hardened steel construction with black nitride coating for corrosion resistance and extended life
  • Q: What is the warranty policy?
    A: GSC provides limited lifetime warranty against manufacturing defects when installed by certified professionals

Shipping & Handling

  • Method: Standard ground shipping
  • Availability: In stock - ships same or next business day
  • Packaging: Compact protective box 4 x 4 x 1 inches
  • Weight: 0.2 lbs

Request For Information

Have questions about ? Fill out the form below and we'll get back to you by the next business day.
GSC Power Division

GSC Power Division

GSC Power Division is a manufacturer of precision-engineered camshafts, valve springs, and valvetrain components designed for high-performance and competition engines across domestic, import, and diesel platforms. Founded by engineers with deep roots in motorsport, GSC Power Division components are machined to exacting tolerances and heat-treated to survive the demands of forced induction and high-rpm applications that destroy stock valvetrain parts. The brand is particularly well-known in the Mitsubishi Evo, Subaru STI, Nissan RB, and Toyota 2JZ communities where aggressive camshaft profiles are essential for extracting maximum power from turbocharged four-cylinder and six-cylinder engines. Whether building for drag racing, road course competition, or a high-powered street car, GSC Power Division camshafts and valve springs are a proven upgrade path. Popular Upgrades GSC Power Division S1, S2, and S3 camshafts are the most popular selections, with each profile offering progressivel...

View GSC Power Division Products
Valve Locks

Valve Locks

Welcome to our Valve Locks collection, where safety meets innovation. Our carefully curated range of valve locks ensures that your valves are secure, preventing unauthorized access and accidental operation. Why Choose Our Valve Locks? Enhanced Security: Protect your equipment with high-quality materials that withstand tampering. Durability: Designed to endure harsh conditions, ensuring long-lasting performance. Easy Installation: User-friendly designs allow for quick and hassle-free setup. Versatile Applications: Ideal for industrial, commercial, and residential use.   Featured Products Browse through our top selections of valve locks: Heavy-Duty Valve Lock: Perfect for larger valves in industrial settings. Compact Valve Lock: Designed for smaller valves, offering portability and ease of use. Weatherproof Valve Lock: Ideal for outdoor applications, resistant to rust and corrosion.   Shop Now! Explore our full range of Valve Locks to find the perfect solution for your need...

View Valve Locks Products
Valves & Components

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
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×