Kibblewhite Valve Technology...
Kibblewhite has been making valve train components for over 78 years. Think about that. These guys were making valves before World War II. When Kibblewhite started Lou Gehrig was the biggest name in baseball. That is a long time.
These guys have spent decades refining and improving their design and manufacturing procedures to make a really good product. There are others out there, but let's be honest. When you think of valves for a dirt bike or ATV Kibblewhite is the first thing that comes to mind.
I have sold thousands of Kibblewhite products and seen thousands of motor builds with Kibblewhite products and I could count on one hand the amount of product failures I have seen. I am sure there are more out there but they definitely make a solid product. Their quality is excellent. What's even better is that you get that high quality and more often than not Kibblewhite Black Diamond valves cost the same or less than OEM valves do!
If your OEM valves are steel you can run Kibblewhite valves with OEM valve springs too (in most cases). If you want a performance spring kit that lasts theirs is the best too, although they are a bit pricey.
Another advantage of using Kibblewhite valves to me is the ability to swap over from titanium to steel. Titanium valves perform a little bit better than steel, and if you are a serious racer who wants every bit of power you can get despite the cost, Ti valves are for you. But unless I am wrong, most of us want power, but we also want reliability at a reasonable cost. That's where Kibblewhite comes in. Take the Yamaha YFZ450 for example. If you were to replace your valves and springs on that bike the cost for parts (valves, springs, retainers, collars, and seals) from Yamaha is $671.72 (at MSRP). The cost for the same parts using stainless valves from Kibblewhite is $540.25. That's a $131.47 difference. That does not even take into account the fact that with Ti valves you will need valve jobs more often and you will end up replacing them sooner. You add those in and you are looking at hundreds of dollars in savings, and from what we have seen the drop off in power from Ti to stainless is very small and virtually unnoticeable to an average rider.
I am not bashing on Ti valves. They do perform better. I am just saying that for my money I would prefer going with Kibblewhite stainless steel valves. What do you think?
Disclaimer: What you read in these blogs are just individual opinions. This is for informational purposes only and is information gathered over several years working in the industry and hands on experience. We realize there will be people who disagree with some of the information posted as well as people who may have more insight. That is what this blog is all about and why we really appreciate your comments as well as formats like this. We all have the ability to learn from each other. So please, read on!