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I'm looking to buy a complete bottom end kit with a +4.4 stroker crank and a high compression piston for my 04 yfz. I'm new to the YFZ world and don't know if there are any additional mods I need to do besides the oil upgrade to protect my motor. If anyone could help it would be appreciated!
 

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I think with a stroker that big you would need to machine the bottom cases for it no? I'm no expert by any means but I would talk to an engine builder since they know all the tips and tricks.
 
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