FLO Headworks: 
Performance Specialists for
your Harley-Davidson® Motorcycles





Twin Cam Tech Tip Download 

Tech Tip Articles

Fun to Ride Guide

Custom Engine Estimate

Custom Engine Building

Other Products and Services

Perry's Bio


Catalog Request



Some people think that a mirror-like shine applied to your intake ports improves breathing and horsepower. In fact, we’ve even heard of some tuners who think so. They couldn’t be more wrong.

Polishing has its place, but so does coarsening the surface to improve airflow and, as a result, better fuel atomization.

At FLO Headworks, we’ve developed a unique process we call Tooled Finish. It combines polishing and grinding in critical areas to produce optimal flow and highest real-world horsepower. We apply Tooled Finish to all our Super Port Flow jobs.

Our Tooled Finish technique uses special carbide cutters from R&R Specialties to apply a coarse surface to the manifold and port throat, graduating to a finer finish in the seat pocket area, and ending in a high polish starting at the 45-degree portion of the valve seat and down around the radius into the port, approximately ¾ of an inch.

The result is the best performance your Harley engine is capable of, regardless of the add-on power equipment you install later. Because the Tooled Finish of your ports atomizes your fuel perfectly and increases overall thermal efficiency, your engine will run cooler and create more power.

Our work and products are guaranteed for one year. For an estimate on your particular application contact us directly by telephone at 805-481-6300. Or you can or e-mail us and receive a quick reply.

Click the pic to see Perry talk about Tooled Finish. It's a big MPEG file (480KB) so you might have to play it a couple of times before it runs smooth.

Related Articles

Super Port Flow

HD Porting Secrets

Porting the Evo Big Twin

Porting the Sportster 1200/Buell

Tooled Finish

Fun to Ride Guide

Tooled Finish Example

Test Data

Twin Cam 88 Data Sheet

Twin Cam 88 Flow Chart

Evo Big Twin  Data Sheet

Evo Big Twin Flow Chart

Sportster 1200/Buell  Data Sheet

Sportster 1200/Buell Flow Chart

Sportster 883  Data Sheet

Sportster 883 Flow Chart

Shovelhead  Data Sheet

Shovelhead Flow Chart

Panhead  Data Sheet

Panhead Flow Chart

Ironhead Sportster  Data Sheet

Ironhead Sportster Flow Chart

For Prices See

Super Port Flow


© 2000-2014, FLO Headworks. Contact Perry Kime at 805-481-6300 or via e-mail.
FLO Headworks, 1150 Pike Lane, #2, Oceano, CA, 93445.
All rights reserved. All prices subject to change without notice.
FLOHEADWORKS.COM and Perry Kime have no affiliation with Harley-Davidson® Motor Company. Trademarks and model names are the property of the trademark holders.