Branch & O'Keefe

est. 1969



about us

For almost four decades, the name Branch has been synonymous with high-performance engine components for Harley Davidsons. The innovative, quality-driven approach is carried on today by Branch-O’Keefe. Our extensive line of American-made performance parts include our legendary Branch heads, cylinder head porting, and pistons; all designed to help you get the most out of your Harley Davidson.

Branch was the only independent company to ever supply Harley Davidson ported and polished heads for the assembly line in Milwaukee and to this day we are involved in projects to change the industry for the better. 

Legendary Head Work, Branch is Back Big Time!
— Steve Bohn - Hot Bike Magazine


what we do


The staff at Branch & O’keefe will work with you for the best combination of parts to provide you the best riding experience. Our goal is to use the highest quality products and workmanship assuring you the most street-able performance and reliability, keeping your bike performing at its best.







Our process of porting increases the efficiancy of your motor, perfecting the flow of air into the cylinders getting a higher level of fill, providing you with maximum performance. 


cylinder boring/honing

Precision boring and honing for proper fitment of high quality forged pistons.




complete valve job

We recondition your cylinder head with the highest quality parts for longevity and performance of your heads. We provide brand new valves, guides, springs and seals to assure you have quality performance.


compression releses 

We machine and instal compression releases into your heads for the purpose of easy starts and starts life.




cylinder round fin cut

A brand new stylistic cut of your cylinders that provides you with a different look for your bike without compromising your engines cooling capability.


head round fin cut

To add to the look of your bike we offer a round fin cut for your cylinder heads that will complete that custom look for your bike.



Branch & O'Keefe T-Shirts on sale now!

If you'd like to order one of our newly designed shirts combining our original branch flow metrics and our newer iconic Branch & O'Keefe logos orders are being placed by phone.

1 (562) 597-2850



Whats new?





If your in the area feel free to come by the shop, contact us by phone with any questions on orders or our services, we ask if you have questions about a build or how our services can help your bike please email us at your earliest convenience.

1940 Freeman Ave, signal hill, CA 90755

1 (562) 597-2850