Making Your Harley-Davidson Twin-Cam Engine Break The 100 HP Mark

zippersengineThese CNC Twin Cam Heads allow your Twin Cam® to easily break the 100 horsepower mark. Ideal for 95-103″ conversions, with the flow rate and combustion chamber machining (91cc) designed for this engine size. Zippers Performance stock these heads on an exchange basis for all year,s but of course your parts must be in nearly perfect cosmetic condition. To know more about how to unlock your Twin Cam Engine full potential, jump to Zippers Performance Products.

2 Responses to “Making Your Harley-Davidson Twin-Cam Engine Break The 100 HP Mark”


  1. 1 simon hd connexion Sep 28th, 2009 at 7:51 am

    hello anyones that is able to work on harley heads comes out easy with 100 hp .where have you been.

  2. 2 Bigwoody Sep 28th, 2009 at 12:43 pm

    Quality company. Had Zippers modify my G S&S carb including Thunderjets. Big difference in mid and top end power and response

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Cyril Huze