I just have a few questions about boring out the engine cause im not too familiar with it. 1st... to bore out the engine what is the least you have to get in parts to bore it out and have it running? 2nd.... Do you have to adjust any other parts or have upgraded parts to bore the enginge and not have problems? 3rd....last one, any suggestions on how to go about doing this to make sure that it gets done right. Thanks a lot and if you have any other suggestions on how to improve my raptor let me know i need all the help i can get.

 

well, if you have an all stock raptor, the first thing you need is: Full Exhaust, Pro-Flow intake. that is good for about 10 more hp. Then you can bore out your engine, best bet is to send it to a place like craycraft racing. www.14min.com

 

I already have a full fmf titanium exhaust, and k&n air filter...but no intake. so i should get an intake and then bore it out by just sending it to craycraft racing and letting them do it?

 

yea, the replacement K&N isnt really that good, get the Proflow K&N, its a much larger K&N and you Clamp it on to the airbox, so it seals off dirt alot better, and allows you to run with your lid off for more horses. Then, Send the engine to CrayCraft and go for a 686cc. Get: 11:1 ( Pump gas )102mm Piston (686cc)
HotCam Stage 2
KibbleWhite Valve Springs
Port & Polish
ProFlow W/ K&N

Call craycraft and telll em what ya want, they'll hook you up.