Kibblewhite

Kibblewhite Stainless Steel Intake Valve Kit

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23 Reviews
3 Questions

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Item #KIB0004

Since 1938, Kibblewhite has taken great pride in their ability to design innovative performance improvements for the valvetrain. This innovative ability has never been more apparent than with the development of the high-tech lightweight stainless steel conversion systems for the incredibly stressed and torturous environment in today's ultra high revving 4-stroke singles.

The challenge to engineer valvetrain that would outperform O.E.M. systems that in some cases included titanium components was not an easy one. This task would require the concentrated efforts of every member of Kibblewhite's design team. It was apparent early on that a lightweight high flowing Kibblewhite stainless race valve was not going to be the complete answer for these engines. Working together as a team enabled Kibblewhite to evolve with a "unified system" approach. In fact, this innovative lightweight system would not only out-perform factory parts, but outlive them as well.

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4.6 out of 5 stars

5 Star 20 4 Star 1 3 Star 0 2 Star 0 1 Star 2

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DirtBikeKid Verified Purchaser Top 250

Over 7 months ago Leavittsburg, Ohio

Worked Great.

We’re good valves lasted a good amount of time and are very nice for the price.

Dusktildawn Verified Purchaser

1 year 6 months ago Lawrence ks

Great product and customer service

When this kit first was first delivered to me it was incomplete and even had some parts for a different bike. I called kibble white and talked to a very friendly and helpful customer service representative who sent me a new kit free of charge that was at my door before the end of the week. The valves fit perfect and the bike runs great, I would definitely recommend this kit to anybody who wants to be done with the annoying oem valve problems.

Bill Verified Purchaser

Over 3 years ago

Bike runs great with new valves. Perfect fit.

Walker7

Over 3 years ago

Greyson Verified Purchaser

Over 3 years ago

Awesome valves

I took the head off my bike, out thesese valves in, out the back back together and with some tweaking on the carb it charted right up

supertrucker47

Over 4 years ago Kilgore, TX 75662, USA

This product works real good

we use this product in our shop and for our customers never had any problems

MarcoLandaez Verified Purchaser

Over 4 years ago Venezuela

Good valve for high power

Jonny Verified Purchaser Top 1000 Contributor

Over 4 years ago Jonny2Stroke

Great upgrade for Hondas.

Installed in my 05 crf450r and work very well. No power loss noticed. This is a high quality kit and beats others I have used and seen. Swirl polished valves and quality machined parts. I am a Tool Maker so I look for quality machining. Would highly recommend. My bike pulls on my buddies 08 rmz450 so I am pleased.

Matt Verified Purchaser

Over 4 years ago Wayne, IL

Definitely a good product!

Its hard to compare before and after power, but there was definitely a lot of power coming from my CRF250R after I installed these!

Moto77

Over 4 years ago

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Tacobell97

Q: Are the retainers cut to hold shims?

13 days ago

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j5252

Q: Can you just remove old valves and install these or do you need head work i have 03 crf and cant shim intake anymore

Over 3 years ago

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MotoSportExpert

Top 1 Contributor

Over 3 years ago

A: Unfortunately we at Motosport.com are not able to give you repair advice. We highly suggest that you purchase an OEM service manual for your machine and refer to it to answer your repair questions. If you need more assistance, please consult a local repair shop to further assist you in your repairs. If you need parts to assist in your repairs, we are happy to assist you with your parts order.

nickname

Q: Valves on 04 crf 250 R

Over 5 years ago

why are the base washers thicker then the OEM base washers and why are the springs doubled up unlike the OEM just wondering if i have the wright ones also do i need to lap the valves intake are new and the hesd is new and the springs are new but the exaust valves are the old OEM just wondering if lapping is required on the old valves and new valves or just the old or none. thanks

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MotoSportExpert

MotoSport Staff

Over 5 years ago

A: The kit for your 2004 CRF250x is indeed supposed to run double springs. It is not uncommon for companies to use dual springs to better help control the valves under high RPM conditions so they do not float. The spring bases are manufactured to work with these springs. These springs have a different thickness wire and the bases will be the correct height to compensate for this to put correct preload on the spring. For the valves you will want to lap them to the new head. It would be recommended to check with an engine builder to verify the old exhaust valves are in a useable condition. Typically when you have a new head it is common practice to install new valves to ensure the longevity of the valve train and to prevent premature wear of the valve seats. You only want to lap steel valves into the head and would not lap a titanium valve.

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See Fitments

Product Variant	Manufacturer Part #
Kibblewhite Stainless Steel Intake Valve Kit	30-31200
Kibblewhite Stainless Steel Intake Valve Kit	30-31500
Kibblewhite Stainless Steel Intake Valve Kit	30-31210
Kibblewhite Stainless Steel Intake Valve Kit	30-31240
Kibblewhite Stainless Steel Intake Valve Kit	30-31230
Kibblewhite Stainless Steel Intake Valve Kit	40-40350
Kibblewhite Stainless Steel Intake Valve Kit	40-40360
Kibblewhite Stainless Steel Intake Valve Kit	60-60450
Kibblewhite Stainless Steel Intake Valve Kit	60-60470
Kibblewhite Stainless Steel Intake Valve Kit	60-60460
Stainless Steel	30-31580

Kibblewhite Stainless Steel Intake Valve Kit

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