V-Twin Head Porting: Specializing in head porting services for Harley's and American V-Twin Motorcycles

We offer our full head porting services for the Twin Cam, Big Twin evolutions, Sportster Evolution, Ironhead Sportster, and Shovelhead engines. Our services are guaranteed to give you noticeable horsepower gains.  How the services work online:

• Decide which service you require or contact us for our recommendations
• Then you can either purchase online, or contact us about your purchase
• Send your heads to our address
• We port your heads and contact you
• The the services are payed for by; Paypal, money order, personal check, or cash
• After payment is complete we send you finished ported heads back to you

We guarantee our services and the work that we perform on your heads.  However we do not cover the work of other mechanics involved in the reassembly of your engine.  You can contact us for tips and guidelines on how to properly reinstall your heads. If you have any questions regarding services on other v-twins, or other services offered email us at sales@vtwinheadporting.com or call us at (507) 383-5553.

• Twin Cam, and Big Twin Evolution engine: Head porting and checking current springs, guides, and valves costs $399.99
• Sportster Evolution engine:  Head porting and replacing stock valves (required for head porting) costs $499.99
• Ironhead engines: Head porting and replacing stock guides, springs, and valves (required for head porting) costs $549.99
• Shovelhead engines and Ironhead engines with high lift cam:  Head porting and replacing guides, springs, and valves (higher lift requires longer valves and springs) costs $799.99

A heads air flow is measured in CFM's.  CFM: Cubic Feet per Minute @ Cam Lift.

Typical Twin Cam Results: (Stock: 119@470) 154@650 151@600 145@500 134@400 119@300 86@200

Typical Evolution Results: (Stock: 125@500) 145@600 142@500 126@400 119@300 86@200