Bore than Port
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Bore than Port
you can't really tell the diff with just a port job, dont get me wrong Porting helps but you need some mods to feel the the free'd up power that porting gives you. I suggest a bore an maby some cams than the motor will take the porting better . At least that is how i did it on my z400 which now has the 500 stroker kit in it by "four stroke tech" an the kit was only $1045 it came with piston,sleve,cams,all gaskets,an crank with longer rod. an ......WOW!!!!!!!! its one fast bike .
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Bore than Port
go with RCR, Bubba 297, or HPD. Bubba and RCR have the fastest turn around times.
I recently had the privlage to ride a Polaris 400 2x4 modified by aaen, my 400 4x4 with HPD pipe (w/ stock muffler), RCR air box mod and re-jet, runs with it. I mean this guy had over $2000 in Aaen motor work. Sadly, I was not impressed.
I recently had the privlage to ride a Polaris 400 2x4 modified by aaen, my 400 4x4 with HPD pipe (w/ stock muffler), RCR air box mod and re-jet, runs with it. I mean this guy had over $2000 in Aaen motor work. Sadly, I was not impressed.