Dear valued customer, due to extended delays with OEM suppliers and the ongoing COVID-19 crisis, most parts are being placed on backorder status. This delay is also having an effect on previous orders. We are doing everything we can to fulfill and ship in a timely manner while also updating our system to better address these delays, our customers’ needs and shopper experience. We apologize for this inconvenience and appreciate your business. If you have any questions please reach out via Live Chat, social media or give us a call at 1-888-339-3888.
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Engine & Exhaust
Intake & Exhaust Valves
Kibblewhite Premium C630 Racing Bronze Valve Guide
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C630 Racing Bronze material contains 80% copper alloyed with 5% nickel and 10% aluminum
Engine Builder Valve Guides were designed with the price conscious builder in mind; meets all the KPMI tolerances but with reduced toughness and wearability, compared to C630 Valve Guides
High copper content (20% greater than traditional manganese bronze materials) gives excellent thermal qualities
High nickel content makes the guide harder and more wear- and corrosion-resistant than other bronze materials
Corrosion resistance is an especially critical element of guide life with the new pump and performance fuels sold today
Aluminum content brings characteristics that make the guides especially compatible with aluminum cylinder heads
A radius at the transition from the nose profile to the main body of the guide prevents galling on installation
Kit includes two valve guides except noted otherwise
Specifications and Options
+0.001, +0.002, +0.010, Standard
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