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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
XR400 Top End
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[QUOTE="TexXR, post: 88131, member: 19176"] I intend to freshen up the top end on my 2000 XR400 in July. My question is should I simply bore it to the first oversize (87mm I think) or take this opportunity to resleeve and go to a 440 kit? It seems that theres only about $125 difference in the cost to resleeve to a 440. I know the 440 kit will give me more overall power but is there a major tradeoff in operating temperature or reliability? From what I've seen either the first oversize or the 440 kit will up my compression ratio to 10.5:1. I will also be having the head worked. Any input on this matter would be appreciated. [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
XR400 Top End
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