ported stock 50cc head  By  nwhicks21 (Read 664 times)

as everybody knows i port the heads for scrappy and been porting heads for over 30 years...so to answer your question is if you don't know what you are doing DONT it will cost you in the long run.plus if you port it you have to but bigger valves in or it don't make much sence..it take years and some skill to do it right..plus i have a flow bench cause that is what you are trying to adchiev changing the way the air flows..you cant just make a bigger hole and think that will make it better..it don't work that way...so if you think you can do the valves and cut new seats then go for it..if you don't know how take my word you could make it worse!!...good luck...buford

no they are not easy...you need very small carbide bit's and very small cutters for the seat's..i make alot of my own cutting tools for these small heads....to do them right it takes me a good 5-hours or so to complete one...thanks...buford.