Im sorry I cant tell you how much and where I got them. I bought the Atv used with them on already

 

you can call mickey and talk with him he will help you out. What you can do is prepay and he will build the kit if he has an engine there and then send out the parts and you send in your parts once you recive the stroker kit. you can do a 449cc kit that is running a custom piston with 13.1 compression and nitrous