Kibblewhite Precision Machining Black Diamond Exhaust Valve Triumph 650 750 OEM # 70-2904 – Lowbrow Customs
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      Here at Lowbrow Customs we believe strongly in supporting US manufacturing. We have created multiple annual scholarships, one with the Lincoln Electric Welding School and another with Tri-C (Cuyahoga Community College) for students in financial need who are pursuing workforce training. From TIG welding to machining, this is the backbone of manufacturing in the United States. Want to learn more?

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      Customer Reviews
      5.0 Based on 3 Reviews
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      • Kibblewhite
      • Black Diamond
      • valve job
      • reliability
      • corners
      • intake
      • exhaust
      • best
      • confidence
      • performance
      Steve W.
      United States United States
      I recommend this product
      An open and shut case

      Rebuilding a worn out '67 TR6R top to bottom, so a valve job is essential. Kibblewhite's race-proven Black Diamond exhaust (and intake) valves will ensure solid performance and reliability for the next 50 years. There are cheaper valves, but "cutting corners" also cuts long term performance. Use the best and ride with confidence.

      ray g.
      first time purchace

      I had l ooked at the Ads in Chopper Mags for years. I thought all you stocked was frame parts. Boy was I wrong. I am working on Harley and BSA + Triump...Your Tech Line made me feel at home .I will look to you for parts in the future...Thank you for the help and the parts.... Have a merry Christmas...and Thanks Ray Greene

      Todd H.
      The valves were perfectly made.

      No need to do any lapping at all. I also had new springs I bought and they are great too. Never been a problem with anything I get from Lowbrow. Thanks Tyler for your great parts seleection and fast service. Happy in Texas ! Todd Havely