What is the Ward Performance Twin Cam CNC Porting for 88", 95", 103"?

This is a specialized CNC porting service for customer-supplied Harley-Davidson Twin Cam 88", 95", and 103" cylinder heads. We use advanced 5-axis CNC technology to meticulously optimize intake and exhaust flow, aiming for smoother performance, sharper throttle response, and increased power.

What kind of performance improvements can I expect from the Twin Cam CNC Porting service?

You can expect significant performance gains, including up to 36.4% more intake airflow and 26.0% more exhaust flow, verified on our flow bench. This is achieved through the use of stainless steel oversized 1.900-inch intake and 1.610-inch exhaust valves, leading to increased horsepower across the RPM range and enhanced throttle response, suitable for both street and track use.

What specific components or processes are involved in the Twin Cam CNC Porting service?

Our process involves the meticulous disassembly, inspection, and precise machining of every cylinder head using advanced 5-axis CNC technology. We install high-quality components such as oversized 1.900-inch intake and 1.610-inch exhaust stainless steel valves to ensure durability, efficiency, and optimal performance for your engine.

Is the Ward Performance Twin Cam CNC Porting reliable for street and track use?

Yes, our Twin Cam CNC porting package is designed and verified to deliver reliability for both street and race-ready applications. We take pride in crafting porting solutions that thrive on the street and perform on the track, ensuring your engine is taken to the next level with precision and durability.

Twin Cam 88", 95", 103" CNC Heads

Ward Twin Cam CNC Porting for 88", 95", 103"

A close-up of a black motorcycle engine cylinder with silver cooling fins and a polished metal cylinder head against a black background.

Description:

Our Twin Cam CNC porting service is engineered to unlock the full potential of Harley-Davidson Twin Cam 88", 95", and 103" engines. Using advanced 5-axis CNC technology, we meticulously optimize intake and exhaust flow for smoother performance, sharper throttle response, and increased power across the RPM range. Whether you’re chasing more horsepower for the street or looking for a race-ready edge, this package blends street reliability with race-inspired precision.

With stainless steel oversized valves—1.900" intake and 1.610" exhaust—this porting delivers up to 36.4% more intake airflow and 26.0% more exhaust flow, as verified on our flow bench. Every cylinder head is disassembled, inspected, and precisely machined to ensure durability, efficiency, and optimal performance for your build.

At Ward Performance, we take pride in crafting porting solutions that thrive on the street and perform on the track. Whether you’re building a reliable street machine or gearing up for the next race day, our Twin Cam CNC porting package will take your engine to the next level.

- Disassembly, Inspection, and Cleaning: Each head is carefully prepped to ensure top performance.
- Stainless Oversized Valves: 1.900" intake and 1.610" exhaust valves boost airflow and durability.
- Extensive 5-Axis CNC Porting: Precision-engineered ports enhance intake and exhaust efficiency.
- Bronze Valve Guides and Viton Seals: High-temp seals and durable guides ensure longevity.
- Multi-Radius Competition Valve Job: Smooths airflow across valve seats for optimal performance.
- Surface Re-machining of Gasket Area: Guarantees a perfect seal for reliable power.
- CNC Machined Combustion Chambers: Tailored for improved combustion and efficiency.
- High-Performance .660" Lift Valve Springs: Built to handle the demands of high-lift cam applications.
- Typically, this service requires you to send in your existing cylinder heads for modification.
- For those looking for a quicker option, we offer off-the-shelf core heads that are fully prepared and ready to ship. If you have specific custom needs, we're more than happy to accommodate—just let us know what you're looking for.
- Still have questions or need help deciding?
- No worries! We know performance upgrades can be a big decision, and we're here to help.
- If you're unsure about anything, don't hesitate to reach out to us or visit our FAQ page for more information. We're just a message away and ready to assist!

Start Your Order For Twin Cam Heads Online

Performance Bronze Valve Guides

High-performance bronze guides are used for durability and precise valve movement.
Multi-radius Competition Valve Job

Ensures a smooth transition from the valve seat to the inner port, maximizing airflow and enhancing performance.
High-lift spring kits (.660" lift)

High temperature steel engineered for optimal valve control in high-performance applications.
Re-machining of head combustion chambers

Ensures perfect sealing and combustion efficiency with your engine setup.