MAP Stage 1 Cylinder Head Preparation – Mitsubishi Evo X 4B11T (EVOX-CHSMS-S1)

Description

MAP Stage 1 Cylinder Head Preparation – Mitsubishi Evo X 4B11T (EVOX-CHSMS-S1)

Firstly, BUY MAP Stage 1 Cylinder Head Preparation Evo X 4B11T. Upgrade and properly prepare your Mitsubishi Lancer Evolution X 4B11T cylinder head with  the MAP Stage 1 Cylinder Head Preparation – Evo X (EVOX-CHSMS-S1). Developed by MAPerformance, this professional cylinder head service is designed for 2008–2015 Mitsubishi Evolution X models and is an excellent option for street, performance, and engine rebuild applications.

The MAP Stage 1 service focuses on restoring and preparing the cylinder head for reliable installation while upgrading important valvetrain components. The process includes cleaning and hot tanking, visual inspection, high-performance deck resurfacing, MAP’s proprietary 5-angle radius valve job, final assembly, and outbound shipping. MAP also supplies the required upgraded valvetrain components as part of the service.

Importantly, this is not a cylinder head porting service. MAP clearly states that no port work is performed with Stage 1. If your build requires CNC intake and exhaust porting, MAP’s Stage 3 Evo X cylinder head preparation is the more appropriate service.

Professional Evo X 4B11T Cylinder Head Preparation

Firstly, the cylinder head is cleaned and hot tanked before the machining and assembly process. This provides a clean foundation for inspection and preparation.

Secondly, MAP performs a visual evaluation and inspection before resurfacing the deck to its high-performance RA specifications. MAP uses CBN resurfacing equipment to produce the surface finish required for proper modern head-gasket sealing.

Thirdly, the cylinder head receives MAP’s proprietary 5-angle radius valve job. MAP uses a Serdi seat-and-guide machine and vacuum-checks each valve seat after cutting to help verify proper valve sealing. The company also adjusts installed valve-tip height to its specifications to help maintain proper valvetrain geometry.

Key Features

• MAPerformance Stage 1 cylinder head preparation
• Designed for Mitsubishi Evo X 4B11T
• MAP SKU: MAP EVOX-CHSMS-S1
• 2008–2015 Evo X application
• Clean and hot-tank service
• Visual cylinder head inspection
• High-performance RA deck resurfacing
• MAP proprietary 5-angle radius valve job
• Professional final assembly
• GSC valve springs and retainers
• GSC valve seals
• Ferrea valves
• Mitsubishi valve locks
• MAP stud and nut kit
• Outbound shipping included by MAP
• No port work included

Included Valvetrain Components

The MAP Stage 1 Evo X service includes the major valvetrain components required for the preparation:

• GSC valve springs and retainers
• GSC valve seals
• Ferrea valves
• Mitsubishi valve locks
• MAP stud and nut kit

MAP states that the required valvetrain components are provided whether the customer supplies a used core or chooses the new-core option.

Evo X 4B11T Fitment

This MAP Stage 1 cylinder head preparation service is designed for:

• Mitsubishi Lancer Evolution X
• 2008–2015 model years
• 4B11T turbocharged engine

The service is intended for Evo X cylinder heads and can be ordered with either a customer-supplied core or a new core purchased through the service.

If your Evo X has a replacement engine, aftermarket cylinder head, or significant engine modifications, verify the core and application before ordering.

Core Options

MAP offers two core options for this service.

Have Core & Will Send It In

Choose this option if you already have a suitable Evo X cylinder head core. You send the cylinder head to MAP, where the listed machining, inspection, valve-seat work, and valvetrain upgrades are performed.

Purchase New Core

If you do not have a suitable cylinder head core, MAP can source a new core for the service. MAP states that the new-core charge is non-refundable.

For an evomotorparts listing, clearly indicate which core option the customer is purchasing so there is no confusion about what is supplied.

No Port Work Included

The MAP Stage 1 Cylinder Head Preparation Evo X is focused on machine work, valve-seat preparation, sealing surfaces, and valvetrain upgrades.

It does not include intake or exhaust porting.

This distinction is important when comparing MAP Stage 1 with Stage 3. MAP’s Stage 3 Evo X service adds CNC porting to the cylinder-head preparation package.

For a street-oriented 4B11T rebuild or a performance engine that does not require extensive porting, Stage 1 provides a comprehensive cylinder-head preparation package without moving into a more extensive CNC porting service.

Why the MAP Valve Job Matters

The valve seats play an important role in cylinder-head performance because they must provide consistent contact between the valve and cylinder head. MAP’s 5-angle radius valve job is performed using dedicated Serdi machining equipment.

MAP states that each valve seat is vacuum checked after cutting to help identify poor sealing. The installed valve-tip height is also set and adjusted to MAP’s specifications to help maintain appropriate valvetrain geometry.

For a performance 4B11T build, these details make professional cylinder-head preparation particularly valuable compared with simply replacing individual parts.

Deck Resurfacing

Proper cylinder-head surface preparation is critical to achieving reliable head-gasket sealing.

MAP resurfaces the Evo X cylinder head to its high-performance RA specifications using CBN cutting equipment. MAP explains that its resurfacing process is designed to provide a superior finish on aluminum and cast components, which is important for modern engine sealing applications.

This makes the service suitable for customers rebuilding a 4B11T who want the cylinder head professionally prepared before reinstalling it onto the engine block.

Installation & Service Notes

This product is a professional cylinder head preparation service, not simply a conventional bolt-on component.

Customers choosing the customer-core option must send the cylinder head to MAP for service. Proper packaging is important when shipping a cylinder head to prevent damage during transportation.

Professional engine assembly is recommended. During final installation, follow the applicable Mitsubishi 4B11T service procedures for head-gasket installation, cylinder-head bolts, torque sequence, camshafts, timing components, valve clearance, and related engine assembly procedures.

Always ensure that the completed cylinder head is compatible with the rest of your engine combination.

What’s in the Box?

• 1 × MAP Stage 1 Evo X Cylinder Head Service
• Selected core option
• GSC springs and retainers
• GSC valve seals
• Ferrea valves
• Mitsubishi valve locks
• MAP stud and nut kit
• Completed cylinder-head assembly after service

Frequently Asked Questions

What is MAP Stage 1 Cylinder Head Preparation for the Evo X?

It is a professional cylinder-head preparation service for the 2008–2015 Mitsubishi Evo X 4B11T. It combines cleaning, inspection, deck resurfacing, a 5-angle valve job, upgraded valvetrain components, and final assembly.

Does MAP Stage 1 include porting?

No. MAP specifically states that no port work is performed as part of the Stage 1 service.

What springs and retainers are included?

The Evo X Stage 1 service includes GSC springs and retainers.

What valve seals are included?

The service includes GSC valve seals.

What valves are included?

MAP lists Ferrea valves as part of the included valvetrain components.

Do I need to supply a cylinder head?

You can either select the Have Core & Will Send It In option or choose the Purchase New Core option. MAP provides both choices.

Is this suitable for a street Evo X?

Yes. MAP describes Stage 1 as an option for preparing the cylinder head for street or performance applications.

What is the difference between Stage 1 and Stage 3?

Stage 1 focuses on cleaning, inspection, resurfacing, valve-seat work, and valvetrain upgrades. Stage 3 adds CNC porting to the cylinder-head preparation package.

Why Buy from evomotorparts.com?

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

Our product range covers OEM replacement components and premium aftermarket performance parts for Evo 7, Evo 8, Evo 9, and Evo X platforms.

For a 4B11T build, cylinder-head preparation is an important part of creating a reliable and properly assembled engine. Choosing a professional preparation service with upgraded valvetrain components can save time while providing a stronger foundation for your engine project.

When you buy from evomotorparts.com, you can expect:

• Quality Mitsubishi Evolution performance parts
• OEM and premium aftermarket components
• Performance-focused 4G63 and 4B11T engine parts
• Competitive pricing
• Worldwide shipping
• Dedicated support for Mitsubishi Evolution enthusiasts

Conclusion

The MAP Stage 1 Cylinder Head Preparation for Mitsubishi Evo X 4B11T (EVOX-CHSMS-S1) is a comprehensive cylinder-head service designed for owners who want their Evo X head professionally cleaned, inspected, resurfaced, machined, upgraded, and assembled.

With MAP’s proprietary 5-angle radius valve job, high-performance deck resurfacing, GSC springs and retainers, GSC valve seals, Ferrea valves, Mitsubishi valve locks, and MAP stud and nut kit, this package provides a professionally prepared foundation for a street or performance-oriented 4B11T engine.

If you’re rebuilding an Evo X engine and want professionally prepared cylinder-head components without sourcing each part separately, buy the MAP Stage 1 Cylinder Head Preparation from evomotorparts.com.

BUY MAP Stage 1 Cylinder Head Preparation Evo X 4B11T Includes GSC springs, Ferrea valves, valve seals, 5-angle valve work and deck resurfacing.