Katech Engineering LLC - HEMI Cylinder Heads, Parts & CNC Porting Services

Performance HEMI Cylinder Heads, Components & CNC Porting

Cylinder heads play a critical role in how a HEMI engine produces power. By controlling airflow and combustion, they directly affect performance, efficiency, and reliability. Selecting the right cylinder head components and machining services is essential to achieving consistent results in both street and competition applications.

This category includes complete HEMI cylinder heads, valvetrain components, and CNC porting and machining services. Each solution is developed to support increased airflow, stable valvetrain operation, and durability under demanding operating conditions.

• Supports improved airflow and combustion efficiency
• Maintains valvetrain stability at higher RPM
• CNC-machined for consistent fitment and repeatability
• Suitable for performance street and competition engines
• Designed for HEMI-based engine platforms

Katech offers complete cylinder head assemblies as well as individual components including valves, springs, retainers, guides, seals, and related hardware. CNC porting and machining services refine airflow characteristics while maintaining proper head structure and long-term reliability.

Since 1977, Katech has developed cylinder head solutions through professional motorsports and high-performance engine programs. That experience is applied directly to every component and machining process.

All development, machining, and validation is performed in-house at Katech’s Clinton Township, Michigan facility using the same processes applied to professional motorsports programs.