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motorcycle cylinder head manufacturer

OEM Aluminum Motorcycle Cylinder Head
Manufacturer

We have long provided OEM cylinder head services to many motorcycle brands, covering the entire process from die-casting, CNC to inspection. We have stable batch delivery capability, mature displacement platform experience, and reliable product consistency.



Home > Motorcycle Cylinder Head

Why Choose Feiya

17 years of experience in motorcycle cylinder head manufacturing

17 years of experience in motorcycle cylinder head manufacturing

The company has been mass-producing motorcycle cylinder head since 2009, covering more than ten displacement platforms, and has long undertaken OEM projects of engine structural parts for many domestic brands.
One of the largest motorcycle cylinder head manufacturers in China

One of the largest motorcycle cylinder head manufacturers in China

The factory is equipped with high-pressure die casting, low-pressure casting and 125 CNC production lines. It has an industry-leading cylinder head manufacturing scale and is one of the leading cylinder head manufacturers in China.
Various specifications support customization

Various specifications support customization

We conduct a complete structural review based on customer drawings, and support the development, trial production and mass production of cylinder head molds for different displacement, engine types and cooling systems, with multiple suitable platforms and fast response.
competitive price

competitive price

Relying on a mature aluminum die-casting system, a stable supply chain and internally controllable processing processes, we provide cost-effective OEM cylinder head manufacturing services while maintaining quality.

Custom motorcycle cylinder head manufacturer Samples

More reliable motorcycle cylinder head manufacturing capabilities

More reliable motorcycle cylinder head manufacturing capabilities

Feiya's cylinder head manufacturing capabilities are based on mature aluminum die-casting systems, stable displacement platform development experience, and controllable CNC machining processes, and are suitable for long-term batch supply and platform-based structural parts projects. We emphasize batch consistency, structural integrity, and stable adaptability to the assembly requirements of the engine manufacturers.

· Stable displacement platform experience
· Controlled die casting and machining rhythm
· Reliable batch consistency
· Adapt to the structural requirements of multiple industries


Why we have become the trusted OEM provider of cylinder heads for many motorcycle brands

Melting and composition control

Melting and composition control

Aluminum ingots are heated and sampled in the melting furnace, and the composition is confirmed with a spectrometer to ensure material stability before entering die casting.

High-pressure / low-pressure die casting

High-pressure / low-pressure die casting

Select high-pressure or low-pressure process according to the cylinder head displacement platform, and control temperature, pressure, and cycle rhythm to form the initial structural part.

Deburring and preliminary cleaning

Deburring and preliminary cleaning

After the casting is demolded, it enters the cleaning station to remove burrs, flash, and gate residues to maintain the integrity of the subsequent machining surfaces.

CNC machining of key dimensions

CNC machining of key dimensions

Complete CNC machining of key locations such as the combustion chamber, sealing surfaces, screw holes, and shaft holes using dedicated fixtures to keep the size chain under control.

Heat treatment / aging treatment

Heat treatment / aging treatment

Perform heat treatment or aging for cylinder heads requiring improved strength and stability, and record temperature curves and time parameters.

Final inspection and airtightness test

Final inspection and airtightness test

Conduct airtightness tests on the water and oil passages, and use CMM to measure key dimensions. After passing inspection, parts are packaged and put into storage.

Multiple structural adaptation

Multiple structural adaptation

Provide cylinder head engineering support for different engine structures such as single-cylinder, parallel twin, V-type, and four-cylinder. Each structure has different combustion chamber, valve layout, cooling passage, and wall thickness requirements. We have corresponding mass production experience.

Multi-displacement platform coverage

Multi-displacement platform coverage

Support displacement platforms such as 125, 150, 250V, 300V, 450V, 500V4, 650V, 700, 800V, 1000V, etc. Understand the differences in die-casting shrinkage, thermal deformation, and key surface accuracy of different platforms, and adjust processes according to platform requirements.

Experience with multiple cooling methods

Experience with multiple cooling methods

Familiar with the internal structural requirements of both air-cooled and water-cooled cylinder heads. Air-cooled fins are sensitive to wall thickness and stress control, while water-cooled platforms require uniform cooling channels and stable internal density. We have stable mass production records for both.

Understanding key parameters and size chain

Understanding key parameters and size chain

Provide cylinder head engineering support for different engine structures such as single-cylinder, parallel twin, V-type, and four-cylinder. Each structure has different combustion chamber, valve layout, cooling passage, and wall thickness requirements. We have corresponding mass production experience.

Mold and process structure capabilities

Mold and process structure capabilities

We can independently complete mold designs for different cylinder head structures, including water-passage sliders, ejector pin layout, gate design, cooling circuits, and mold flow analysis. We have mature experience in mold trials and mold repair for multi-structure and multi-cavity cylinder heads.

Materials and internal quality control

Materials and internal quality control

Familiar with the fluidity, solidification speed, and shrinkage porosity risks of commonly used aluminum alloys for cylinder heads (such as ADC12, A356) under different structural types. Process parameters such as temperature curves, shot settings, and venting layouts can be adjusted according to product type to improve internal density and stability.

Critical dimension management

Critical dimension management

Use CMM to inspect key dimensions of the cylinder head.

Material consistency

Material consistency

Use a spectrometer to monitor aluminum melt composition.

Airtightness testing

Airtightness testing

Conduct batch airtightness tests for water and oil passages.

Wall thickness monitoring

Wall thickness monitoring

Perform key inspections on heat-dissipation and high-stress areas.

Data archiving

Data archiving

Batch inspection records are archived and traceable.

Assembly surface inspection

Assembly surface inspection

Sealing surfaces and screw hole positions remain stable.

Standard packaging method

Standard packaging method

Packaging is divided by platform and batch.

Clear batch labeling

Clear batch labeling

Convenient for customers' warehouse management.

Controllable lead time

Controllable lead time

Production capacity is scalable and suitable for long-term orders.

Strong export experience

Strong export experience

Familiar with transportation requirements in multiple markets.

Quick response to changes

Quick response to changes

Order adjustments can be handled with buffer capacity.

Safe transport

Safe transport

Special protection solutions are provided for vulnerable areas.

Our Clients


Over the years, we have provided long-term and stable cylinder head OEM manufacturing services to many motorcycle brands (including listed companies), and have become the largest motorcycle cylinder head manufacturer in Yueqing City, China.

AODES logo
HAOJIN MOTOR logo
LONGJIA logo
JINLANG logo
LINHAI logo
Nebula Automotive Private Limited / Nebula Exports logo
SEGWAY logo

More About Us

our company

Feiya is a seasoned OEM manufacturer with 17 years of expertise in aluminum die casting. While renowned for our multi-platform motorcycle cylinder heads, our capabilities extend to automotive structural parts and precision fuel dispenser components. We provide complete end-to-end support—from mold development and high/low-pressure die casting to complex CNC machining and rigorous testing—delivering ready-to-assemble solutions for diverse industries.


LEARN MORE
manufacturing

Operating within a 17,000+ m² facility, Feiya integrates the complete aluminum manufacturing cycle—from in-house mold design and die casting (HPDC & LPDC) to precision CNC machining. Equipped with over 30 advanced casting units and 125+ CNC centers, we maintain an annual capacity exceeding 5,000 tons. This vertical integration allows us to strictly control production timelines and guarantee stable, scalable supply for your critical OEM projects.

Certifications

Quality is the core of our operations. Feiya is ISO 9001 certified and recognized as a National High-Tech Enterprise and a Technology-Based SME in Zhejiang. We adhere to rigorous quality management systems to monitor every process, from raw material inspection to final tolerance checks. These credentials reflect our commitment to technical innovation and prove our reliability as a trusted partner for global automotive and industrial clients.

FAQ

What displacements can a motorcycle cylinder head support?

Feiya can mass-produce multiple platforms such as 125, 150, 250V, 300V, 450V, 500V4, 650V, 700, 800V, and 1000V, and can carry out customized development and trial production based on customer drawings.

How long is the production cycle of an OEM customized motorcycle cylinder head?

The cycle depends on mold development, trial stability, and batch quantity. Normally, new projects take about 35–50 days from mold design to first sample delivery, and the mass production cycle is controllable according to the production schedule.

What material is used for a motorcycle cylinder head?

Most cylinder heads use aluminum alloys such as ADC12, A356, etc. Based on displacement, structure, and heat dissipation requirements, the material will undergo corresponding melting control and heat treatment.

How to evaluate the batch consistency of a cylinder head?

It is mainly evaluated through size chain control, CMM inspection, airtightness testing, and key wall-thickness measurement. Feiya keeps batch records to help customers track changes and conduct long-term verification.

More about motorcycle cylinder head manufacturing

what is a motorcycle cylinder head?


A motorcycle cylinder head is one of the most important structural parts of an engine. It houses the combustion chamber, valve mechanism, cooling system, and oil passages. It directly affects compression ratio, heat dissipation efficiency, and power output. It is typically produced by aluminum alloy die casting and finished by CNC machining for all key dimensions.


How is a motorcycle cylinder head produced?


The usual manufacturing process includes: Molten aluminum melting and composition control → high-pressure or low-pressure die casting → burr removal → CNC machining of key dimensions (such as combustion chamber, sealing surface, screw hole) → heat treatment and aging → airtightness testing → final inspection and packaging. Mold structure, fixturing, position accuracy, and internal quality requirements are the main technical challenges.


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