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Your cart is empty.Verify the part fits before purchasing Spec:Description: Big Bore Cylinder KitCompression Ratio: 11.3:1Cylinder Diameter: 94mmCylinder Kit Type: Big BoreDisplacement: 434ccKit Includes: Cylinder, Piston Kit, and Top-End Gasket KitNotes: Uses Vertex #23533Replaces OEM Numbers:Western Powersports : 422-41001KLemans : 0931-0135Tucker Rocky : 733708Southern : HR41001K01Advantage Performance : 77002-11Automatic Distributor's : 880038Fits:Arctic Cat 400 DVX 2004-2008Kawasaki KFX 400 2003-2006, KLX 400 R 2003-2004Suzuki DR-Z 400 2000-2004, DR-Z 400 E 2000-2007, DR-Z 400 S 2000-2019, DR-Z 400 SM 2005-2018, LT-Z 400 2003-2013
Sonia
Reviewed in the United States on November 16, 2021
As of now I’m really upset and my project is super delayed. After installing the piston I noticed it had an 89 on it and got out micrometer to find that it is in fact only 90mm even though the box is labeled big bore. Not sure if this is CW fault or the seller but I’m upset. If they don’t give me trouble with the return I’ll up some stars because stuff happens but this is pretty ridiculous and the type of thing that make projects impossible to finish.
Ryan Kushner
Reviewed in the United States on April 13, 2021
Works great alot more power I recommend if you want more power
Dennis P.
Reviewed in the United States on June 9, 2016
Just very impressed and happy with this product! Shipped laser fast, arrived perfect in a awesome package that impressed me from the get go! Parts seemed extremely well made and went together as easy as they describe. Would buy again in a heart beat! Now time to go ride this thing ;)
peyton
Reviewed in the United States on October 5, 2016
Sleeve broke apart and destroyed the engine. Maybe it was just a fluke, idk but buyer beware.
A. Lau
Reviewed in the United States on January 20, 2016
Instructions aren't the best. Not a huge improvement on power. Used on a 06 DRZ400SM
Todd
Reviewed in the United States on April 21, 2016
Worked great on my 2006 Kawasaki KFX 400 quad. Perfect fit, no issues at all. This is a top notch kit and has everything you need to install a big bore on you DRZ/LTZ/KFX.VERY high quality product.
Veef
Reviewed in the United States on March 8, 2014
Installed easy enough. Works well. Gain low and mid range torque with stock carb. I haven't rejetted it yet but seat of the pants say it close enough for now. Everything fit perfectly and the quality appears to be very good.
Ryan Guffy
Reviewed in the United States on August 6, 2013
CW is big bore kit was awesome! Parts were perfect fit and if you really want more out of your DRZ, this will do it. I combined it with the FCR 39mm, got big power and loved it, this was an excellent product and got the best price on amazon.
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