boring to 330

Does anyone know any companies that would bore my 300ex to a 330. I have some local dealers by me but I want to find it cheaper. COmpanies like Trinity and stuff. And Would I just send my engine there or my cylinder.

send it to fourstroke tech just send the engine to them but tell them exactly what you want cause if you say i want the 300kit they will give you a hell of a lot more than just a new piston, larger bore and a new sleeve they will give you over 1000 dollars worth of stuff