Cylinder Head Operations

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For exceptional auto repair and precision operations in Bremen, OH, Unlimited Diesel Performance is your one-stop shop. Discover unparalleled expertise, cutting-edge technology, and commitment to excellence that set us apart in the industry.

Specializing in Comprehensive Cylinder Head Operations

We specialize in comprehensive cylinder head operations, components that impact your engine’s performance and longevity. Our machinists are equipped to handle combustion chamber design, valve installation, camshaft timing, and machining with precision and expertise.

Addressing Common Concerns with Expertise

Our team is adept at identifying and addressing issues such as overheating, loss of power, or reduced fuel efficiency, always ensuring your engine operates at peak performance.

Meticulous Assembly and Quality Control

Choose us for Meticulous Assembly and Quality Control. We prioritize precision in every aspect of our operations to guarantee optimal performance and reliability.

Types of Cylinder Head Machining services we offer:

Clean and Magnaflux

We give your cylinder head a thorough cleanup and inspection, ensuring it’s in top-notch shape.

Pressure Testing

Our cylinder heads undergo rigorous pressure testing before and after machining to verify no cracks or defects exist in the castings, and to ensure valve seats, injector cups and inserts are properly sealed.

Valve Guide Replacement

Replace or upgrade your valve guides for improved durability, proper clearance, and correct geometry.

Valve Guide Liner Installation

High performance guide liners knurled and diamond honed to retain oil and improve valve stem wear.

Valve Seat Replacement

Boost engine efficiency with our precise valve seat replacement services.

High-Performance Valve Job

Unleash maximum power with our high-performance valve job expertise.

Cylinder Head Resurfacing

Our cylinder heads are resurfaced to a finish that is better than when it came from the factory.


Seal the deal with our specialized O-Ringing services for enhanced performance.


Ignite your engine’s efficiency with our expert fire-ringing techniques.

Valve Spring Testing and Upgrades

Keep your engine’s heartbeat strong with our testing and upgrade services.

Cylinder Head Porting

Maximize airflow and performance with our precision porting techniques.

Choose Excellence: Trust Unlimited Diesel for Your Cylinder Head Needs

Don’t compromise on quality when it comes to your vehicle’s operations. Choose Unlimited Diesel for precision, reliability, and a commitment to excellence. Your engine deserves the best – trust Unlimited Diesel to deliver exceptional cylinder head services that keep your vehicle running smoothly.

Contact us today to experience the difference our commitment to excellence can make for your diesel vehicle. Trust us to be your reliable partner for all your cylinder head needs.