Dynamic Engine Factory

cylinder head mods And Port Work

We specialize in custom cylinder head modifications and valve train development. Cylinder head porting is performed in house either by hand or CNC machine. The application will determine this choice. Our expertise allows us to improve airflow, increase horsepower, and improve overall engine efficiency, tailored to meet the demands of competitive racing.

At DEF Racing, we provide a comprehensive range of cylinder head services specifically tailored for 4-stroke engines. Below is a clear and concise overview of our offerings along with associated pricing.

SERVICES OVERVIEW

Cylinder Head Service Starting Price: $200

  • Comprehensive service includes:
    • Tear down and cleaning
    • Inspection of components
    • Reassembly
    • Installation of new parts
    • Shimming the camshaft to correct specifications

Cylinder Head Porting Starting Price: $350

  • Improves airflow and/or airspeed depending on application
  • Custom porting for your specific engine requirements available

Cylinder Head Milling Starting Price: $50

    • Precision milling to ensure the cylinder head is flat and seals up
    • Can also be performance to increase compression

Our services include:

Recutting Valve Seats (Labor Only)
Starting Price: $50 per hole

  • CNC valve seat cutting for precise angles and concentricity.
  • Improves airflow and valve to seat seal-leading to increased dynamic compression and horsepower

Installing and Recutting Valve Seats (Labor Only)
Starting Price: $125 per hole

  • Expert installation and machining for optimal valve seating.

Moldstar Valve Seats
Starting Price: $30 per piece

  • High-performance copper seats for enhanced durability.

Welding on Intake Spigot (Labor Only)
Price: $110

  • Provides a secure and reliable intake spigot attachment.
  • Allows precise fitment of larger throttle bodies

Intake Spigots
Price: $70

  • Custom spigots are available for the CRF and YZF models
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Complete Engine Lease Programs

Our complete engine lease programs provide riders and teams with high-performance engines without the long-term commitment to creating an in-house engine program for yourself. This service allows access to championship-caliber engines for races, ensuring you have the reliability and speed you need on the track. Turn key race engines at your disposal.

Consulting

With years of industry experience, we offer expert consulting services for engine design and performance optimization. Whether you’re a privateer or a professional team, our insights can help you achieve your performance goals through targeted strategies and solutions.

Engineering and Design Support

From concept to execution, our engineering and design support services cater to custom projects. Whether you’re developing a new engine or modifying an existing one, we work closely with you to bring your vision to life with innovative design solutions.
Complete Engine Lease Programs

Our complete engine lease programs provide riders and teams with high-performance engines without the long-term commitment to creating an in-house engine program for yourself. This service allows access to championship-caliber engines for races, ensuring you have the reliability and speed you need on the track. Turn key race engines at your disposal.

Consulting

With years of industry experience, we offer expert consulting services for engine design and performance optimization. Whether you’re a privateer or a professional team, our insights can help you achieve your performance goals through targeted strategies and solutions.

Engineering and Design Support

From concept to execution, our engineering and design support services cater to custom projects. Whether you’re developing a new engine or modifying an existing one, we work closely with you to bring your vision to life with innovative design solutions.

services

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Vapor honing is also commonly known as wet blasting, liquid honing, vapor blasting, dustless blasting, or slurry mix blasting.

The multi-size grit/abrasive media (usually glass bead) is mixed with water and compressed air to blend before being propelled through a blast nozzle. This process is known as slurry blasting or vapor honing.

u200bContact us today to get your parts vapor honed!