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Discussion Starter · #1 ·
Bought a blown up 04 yfz450(crank,rod,cylinder and cases) going to build a dirt drag bike. What is a good combination to build.I want reliable power,HR+3 crank,CW+3 cylinder kit or stock crank with the CW cylinder? Will later put a 20-30 shot on it. Just looking for some ideas,nothing super expensive or exotic.
 

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Leave it stock bore and stroke if your going to shot NOS through it, maybe even go up to a 97mm cylinder with a stock crank. JMO

Just lighten the crap out of it....
 

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im with ernie if you want a cheap and fast setup, stock and spray it ,i have a stock 450r,with cam,no porting or anything,and went 4.5X on dirt track in north carolina,same setup in the sand,went 4.46 300'
 
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