STM Evo 4-9 4G63 Short Block Build – New OEM Evo 8 Block

Description

STM Evo 4-9 4G63 Short Block Build – New OEM Evo 8 Block

Firstly, Buy the STM Evo 4-9 4G63 Short Block with a new OEM Evo 8 block Looking for a strong and reliable foundation for your Mitsubishi Evolution engine build? The STM Evo 4-9 4G63 Short Block is built for enthusiasts who want serious performance from the legendary 4G63T platform.

This short block starts with a new OEM Mitsubishi Evo 8 engine block. It is then professionally machined, balanced, and assembled with high-performance internal components. The result is a performance-focused 4G63 short block that is ready to support demanding street, drag, track, and dyno applications.

Buy the STM Evo 4-9 4G63 Short Block with a new OEM Evo 8 block, performance pistons, ACL bearings, ARP main studs, and high-performance components.

New OEM Evo 8 4G63 Block

The foundation of this engine build is a new OEM Evo 8 4G63 block. Using a new factory block provides a fresh starting point for a high-performance engine build.

The Evo 8 block can also be used for certain Evo 9 applications. However, an appropriate MIVEC conversion setup is required when pairing an Evo 8 block with an Evo 9 cylinder head.

This makes the short block a versatile option for Mitsubishi Evolution Evo 4, Evo 5, Evo 6, Evo 7, Evo 8, and Evo 9 projects.

Built for High-Performance 4G63T Engines

The Mitsubishi 4G63T is one of the most respected turbocharged four-cylinder engines in the performance world. However, making serious horsepower requires more than simply increasing boost.

A properly built bottom end provides the foundation needed for a high-power engine.

The STM Evo 4-9 4G63 Short Block is designed with this in mind. STM states that its built 2.0L short block has been track and dyno tested to 10,000 RPM and 1,000+ horsepower.

Of course, actual power and reliability will depend on the complete engine combination. Turbocharger selection, fuel system, engine management, boost pressure, RPM, tuning, and supporting components all play an important role.

Performance Internal Components

This STM 4G63 short block uses carefully selected components designed for high-performance applications.

The build includes STM-spec 11.5:1 gas-ported pistons and ACL Tri-Metal bearings. It also uses ARP main studs for additional clamping strength.

The rotating assembly is fully balanced as part of the build process. This helps create a smoother and more consistent engine combination, particularly when the engine is operated at higher RPM.

The block also receives the necessary clearance machining and line honing as part of the preparation process.

Connecting Rod Options

The STM Evo 4-9 short block offers different connecting rod options to suit different engine builds.

You can choose Manley Turbo Tuff steel rods for a strong and durable turbocharged setup.

There is also a GRP aluminum rod option for specialized high-performance and competition applications.

Buy the STM Evo 4-9 4G63 Short Block with a new OEM Evo 8 block, performance pistons, ACL bearings, ARP main studs, and high-performance components.

Choosing the right connecting rods depends on your horsepower target, RPM range, intended use, and overall engine setup.

Balance Shaft Removal

The STM configuration is also designed for balance-shaft removal.

This includes an OEM balance-shaft stub, balance-shaft cap, and related components needed for the setup.

Balance-shaft removal is a popular modification among performance-oriented 4G63 builders. It can simplify the bottom-end configuration and is commonly used in high-performance Evo engine builds.

Professional Machine Work

Building a reliable high-performance 4G63 engine requires careful machining and preparation.

The STM short block receives important machine work before final assembly. This includes line honing, balancing, clearance machining, and magnaflux inspection.

The block is also O-ringed with stainless steel rings.

These processes help prepare the engine block for demanding performance applications and provide a solid foundation for the rest of the engine build.

Buy the STM Evo 4-9 4G63 Short Block with a new OEM Evo 8 block, performance pistons, ACL bearings, ARP main studs, and high-performance components.

Compatible Mitsubishi Evolution Models

The STM Evo 4-9 4G63 Short Block is designed around the 4G63 platform used in several generations of the Mitsubishi Lancer Evolution.

It is suitable for projects involving:

• Mitsubishi Lancer Evolution IV
• Mitsubishi Lancer Evolution V
• Mitsubishi Lancer Evolution VI
• Mitsubishi Lancer Evolution VII
• Mitsubishi Lancer Evolution VIII
• Mitsubishi Lancer Evolution IX

Always confirm your exact engine configuration before ordering. Evo generations can have differences in cylinder heads, MIVEC systems, sensors, and supporting components.

Why Choose the STM Evo 4-9 4G63 Short Block?

Firstly, this build starts with a new OEM Evo 8 block, giving you a fresh and genuine Mitsubishi foundation.

Secondly, the short block uses performance-focused components, including STM-spec pistons, ACL bearings, and ARP main studs.

Thirdly, you can select the connecting rod configuration that best matches your performance goals.

The short block is also professionally machined, balanced, and assembled. This saves you the time and complexity of sourcing and preparing every bottom-end component separately.

For enthusiasts building a serious Mitsubishi Evolution, this can be a convenient way to start with a professionally prepared 4G63 bottom end.

Frequently Asked Questions

What block is used in this short block?

This configuration uses a new OEM Mitsubishi Evo 8 4G63 engine block.

Can I use this short block in an Evo 9?

Yes. The Evo 8 block can be used with an Evo 9 cylinder head when the appropriate MIVEC conversion components are used.

How much horsepower can this short block handle?

STM states that its built 2.0L short block has been tested to 10,000 RPM and 1,000+ horsepower. Actual results depend on the complete engine setup, tuning, fuel system, turbocharger, and intended application.

What pistons are included?

The build uses STM-spec 11.5:1 gas-ported pistons.

What connecting rods are available?

The available options include Manley Turbo Tuff steel connecting rods and GRP aluminum connecting rods.

Does it include ARP main studs?

Yes. ARP main studs are included as part of the performance-oriented build.

Is balance-shaft removal included?

Yes. The configuration includes components for balance-shaft removal.

Is the short block built to order?

Yes. STM lists this type of performance short block as a built-to-order product, so build time can vary.

Conclusion

The STM Evo 4-9 4G63 Short Block Build with a New OEM Evo 8 Block is an excellent foundation for a serious Mitsubishi Evolution engine project.

With a new OEM Evo 8 block, performance pistons, premium bearings, ARP main studs, professional machine work, a balanced rotating assembly, and multiple connecting rod options, this short block is designed with performance in mind.

Whether you are building an Evo 7, Evo 8, or Evo 9 for the street, drag strip, track, or dyno, a properly prepared 4G63 bottom end is an important part of creating a dependable high-performance engine.

Choose the STM Evo 4-9 4G63 Short Block when you want a professionally prepared foundation for your next Mitsubishi Evolution build.

Buy the STM Evo 4-9 4G63 Short Block with a new OEM Evo 8 block, performance pistons, ACL bearings, ARP main studs, and high-performance components.