MAP SPEC Cylinder Head – Stage 1 for 2003–2005 Mitsubishi Evo 8 4G63 (MAP EVO8-CHS-S1-MAPSPEC-MSS)

Description

MAP SPEC Cylinder Head – Stage 1 for 2003–2005 Mitsubishi Evo 8 4G63 (MAP EVO8-CHS-S1-MAPSPEC-MSS)

Firstly, BUY MAP SPEC Cylinder Head Stage 1 Evo 8 4G63. Upgrade the top end of your Mitsubishi Lancer Evolution 8 4G63 with the MAP SPEC Cylinder Head – Stage 1 (MAP EVO8-CHS-S1-MAPSPEC-MSS). Developed by MAPerformance, this performance cylinder head combines a good used JDM Evo 8 cylinder head with carefully selected aftermarket valvetrain components to create a professionally prepared replacement for street and performance-focused 4G63 builds.

The MAP SPEC Stage 1 cylinder head is designed specifically for 2003–2005 Mitsubishi Evo 8 models equipped with the 4G63 engine. Rather than purchasing and assembling the individual cylinder head components separately, this package brings the major upgraded valvetrain components together in one professionally prepared cylinder head assembly. MAPerformance states that its MAP SPEC heads use precision inspection and exacting measuring techniques during assembly.

At the heart of the package is a good used JDM Evo 8 cylinder head. The head is equipped with Ferrea 6000 standard-size stainless steel valves, Ferrea copper/bronze standard-size valve guides, Supertech valve seals, and Kiggly high-pressure beehive valve springs with titanium retainers.

Built for the Evo 8 4G63

Firstly, this MAP SPEC cylinder head is specifically intended for the 2003–2005 Evo 8 4G63, making it a purpose-built option rather than a generic performance cylinder head. Proper application-specific components are important when replacing or upgrading the cylinder head on a 4G63 engine.

Secondly, the package upgrades important valvetrain components. The Ferrea 6000 standard-size stainless valves provide a performance-oriented valve solution, while the Ferrea copper/bronze valve guides and Supertech valve seals complement the valve assembly.

Thirdly, the cylinder head uses Kiggly high-pressure beehive springs with titanium retainers. This upgraded spring and retainer combination is intended for performance 4G63 applications where the valvetrain needs to be prepared beyond a basic stock replacement configuration.

Key Features

• MAPerformance MAP SPEC Stage 1 cylinder head
• Designed for Mitsubishi Evo 8 4G63
• MAP SKU: MAP EVO8-CHS-S1-MAPSPEC-MSS
• 2003–2005 Evo 8 application
• Good used JDM Evo 8 cylinder head
• Ferrea 6000 standard-size stainless steel valves
• Ferrea copper/bronze standard-size valve guides
• Supertech valve seals
• Kiggly high-pressure beehive valve springs
• Titanium valve retainers
• Professionally inspected and assembled
• Performance-focused replacement cylinder head
• Optional Kiggly HLA available separately

What’s Included

The standard MAP EVO8-CHS-S1-MAPSPEC-MSS package includes:

• 1 × MAP SPEC Stage 1 cylinder head
• Good used JDM Evo 8 cylinder head
• Ferrea 6000 standard-size stainless valves
• Ferrea copper/bronze standard-size valve guides
• Supertech valve seals
• Kiggly high-pressure beehive valve springs
• Titanium retainers

Kiggly HLA is optional and is not included in the standard SKU unless selected as an additional option.

BUY MAP SPEC Cylinder Head Stage 1 Evo 8 4G63, Professionally prepared head with Ferrea valves, Kiggly springs, titanium retainers and Supertech seals.

Evo 8 4G63 Fitment

This MAP SPEC Stage 1 cylinder head is listed for:

• 2003 Mitsubishi Lancer Evolution 8
• 2004 Mitsubishi Lancer Evolution 8
• 2005 Mitsubishi Lancer Evolution 8
• 4G63 turbocharged engine

MAPerformance specifically identifies the application as 2003–2005 Evo 8 4G63.

Before ordering, verify your vehicle’s model year and engine configuration, particularly if the car has received a replacement engine, cylinder head swap, or other major modifications.

Performance Valvetrain Components

A major advantage of the MAP SPEC Cylinder Head Stage 1 Evo 8 is that it comes with upgraded valvetrain components already selected for the application.

The Ferrea 6000 stainless steel valves are standard-size components, while the copper/bronze Ferrea valve guides provide the supporting guide components for the valve assembly. Supertech valve seals are also included to complete the valve sealing system.

The head also features Kiggly high-pressure beehive valve springs with titanium retainers. For performance-oriented 4G63 builds, upgrading the springs and retainers can be an important part of preparing the cylinder head for increased demands compared with a basic stock configuration.

This makes the MAP SPEC head particularly attractive to Evo owners who want a professionally prepared cylinder head without sourcing and assembling every individual component themselves.

MAP SPEC Quality & Assembly

MAPerformance developed its MAP SPEC cylinder heads by combining proven power-supporting components with its own engine-building experience. The company states that the components are precision inspected and installed using exacting measurement techniques and state-of-the-art equipment.

This approach can save considerable time during an engine build. Instead of starting with a used cylinder head and separately sourcing valves, guides, seals, springs, and retainers, the MAP SPEC package brings these components together as one performance-oriented assembly.

For an Evo 8 owner rebuilding a 4G63, this can make the cylinder head portion of the project considerably more straightforward.

Optional Kiggly HLA

The standard SKU is available with an option to add Kiggly HLA. The standard product listing identifies the Kiggly HLA as an optional upgrade rather than part of the base package.

If your engine build requires the Kiggly HLA, make sure the correct option is selected when ordering rather than assuming it is included with the standard MAP SPEC cylinder head.

Installation

Professional installation is recommended when fitting a performance cylinder head to a 4G63 engine.

Before installation, the engine block and cylinder head should be inspected and prepared according to the appropriate Mitsubishi service procedures. Correct head-gasket selection, head-bolt condition, torque sequence, camshaft installation, timing alignment, and valvetrain setup are all important during final engine assembly.

Because this is a performance cylinder head assembly, always confirm that the complete combination—including cams, pistons, valve clearance, timing components, and intended RPM range—is compatible with the finished engine.

Frequently Asked Questions

What is the MAP SPEC Stage 1 cylinder head?

It is a professionally prepared MAPerformance performance cylinder head package designed for the 2003–2005 Mitsubishi Evo 8 4G63. It combines a good used JDM Evo 8 cylinder head with upgraded valves, guides, seals, springs, and titanium retainers.

Is this the same as MAP Stage 1 Cylinder Head Preparation?

No. They are different products.

The MAP Stage 1 Cylinder Head Preparation (EVO-CHS-S1) is a customer-core service where you send your cylinder head to MAP for preparation. The MAP SPEC Cylinder Head Stage 1 (MAP EVO8-CHS-S1-MAPSPEC-MSS) is a complete MAP SPEC cylinder head package supplied with a good used JDM Evo 8 cylinder head and upgraded components.

What valves are included?

The MAP SPEC Stage 1 head includes Ferrea 6000 standard-size stainless steel valves.

What valve springs does it use?

The head uses Kiggly high-pressure beehive valve springs with titanium retainers.

Are the valve guides included?

Yes. MAP lists Ferrea copper/bronze standard-size valve guides as part of the MAP SPEC 4G63 cylinder head package.

Is Kiggly HLA included?

No. Kiggly HLA is an optional addition to the standard MAP EVO8-CHS-S1-MAPSPEC-MSS package.

What Evo models does it fit?

The listed application is 2003–2005 Mitsubishi Lancer Evolution 8 with the 4G63 engine.

Why Buy from evomotorparts.com?

At evomotorparts.com, we specialize in Mitsubishi Evolution parts for owners, enthusiasts, engine builders, and performance workshops.

Our range includes genuine OEM Mitsubishi components and premium aftermarket performance parts for Evo 7, Evo 8, Evo 9, and Evo X platforms.

For a 4G63 engine build, the cylinder head is one of the most important assemblies to get right. A professionally prepared performance head can save time compared with sourcing and assembling individual valvetrain components.

With evomotorparts.com, you can shop for:

• Quality Mitsubishi Evolution performance parts
• OEM and premium aftermarket components
• Performance-focused 4G63 engine parts
• Evo 8 and Evo 9 engine components
• Competitive pricing
• Worldwide shipping
• Dedicated support for Mitsubishi Evolution enthusiasts

Conclusion

The MAP SPEC Cylinder Head – Stage 1 for Mitsubishi Evo 8 4G63 (MAP EVO8-CHS-S1-MAPSPEC-MSS) is a complete performance-oriented cylinder head package designed for 2003–2005 Evo 8 applications.

With a good used JDM Evo 8 cylinder head, Ferrea 6000 stainless valves, Ferrea copper/bronze valve guides, Supertech valve seals, and Kiggly high-pressure beehive springs with titanium retainers, it provides a ready-to-use foundation for a performance-focused 4G63 engine build.

If you’re rebuilding or upgrading an Evo 8 4G63 and want to avoid sourcing the major cylinder-head components individually, buy the MAP SPEC Stage 1 cylinder head from evomotorparts.com.

BUY MAP SPEC Cylinder Head Stage 1 Evo 8 4G63, Professionally prepared head with Ferrea valves, Kiggly springs, titanium retainers and Supertech seals.