[4x4rider]

can anyone tell me how to port and polsih my 02 450s

 

[xdescrubx]

you need honeing tools, its not as easy as it sounds. u aslo need a flow jet to make sure your adding power and not degrading performance. it will cost u about $300 bucks for someone to port and polish the head at any bike shop. if they want more, tell them they can....well u know. u will proably have to take the head off and leave the valves on and take it to them. if you want to do something yourself, get a dremel and only polish the ports...will add a little better flow to the engine...probably not enough to notice. sorry if this is not what u wanted to hear.

 

[big4fifty4man]

It is really a job. If you take off the head and you do the installation yourself you could probably get the job done for 50-125 bucks less.
I got my block bored .020 over got a high comp. wiesco piston, hot cams cam, port&polish and a valve, valve guide, valve seat, job for 600-650 bucks, but that is because that is all i took them the job would be alot higher if you give them the bike and make them disassemble and assemble it.

 

[little_ceo]

Heres a web site that shows you step by step
<a href="http://www.sa-motorsports.com/diyport.shtm" target="_blank">http://www.sa-motorsports.com/diyport.shtm</a>

I have never tried it but it doesnt look that complicated.

 

[justinwilliamskx]

polishing is extreemly easy to do porting i have yet to do much of tho

 

[4x4rider]

thanks everyone for the info this will help a lot.