What's New

Head Quarters Pro Forged Roller Rocker Arms are forged from 4140 steel and CNC machined for a perfect fit. Each rocker arm includes solid bronze bushings for extended life, and roller tips that reduce operating friction. Head Quarters Pro Roller Rocker Arms fit all Evo-style, Big Twin, Sportster, and Twin Cam engines. Sold in sets of four.
HQ-4600

 

Our new Tshirts are in and selling very well. (dealers, we have a great margin for you) The art work can be seen on our Tshirt page. Check them out. We think you will like them.

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We are starting to put timing tables for EFI units on our tech pages. go to the TECH SHEETS section, select TECH TIPS and then EFI TUNING to find them.

We are now fully stocked on CP Pistons for TC models. Dealers call for pricing.

We now carry the Revolution big bore cylinders and pistons.

All sizes available. We will soon be adding a full page with all part numbers and applications.

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