Hey my friend is looking at buying a 330 EX but is worried about how good a bored 300 runs. So if anyone could give me info on how reliable a 330EX is it would be great. Thanks

 

just the bore .. or like the whole kit with a cam, valves and all that .. my buddy has a 330 with just a all around cam .. it runs healthy.. my 300 is bored out with cam valves and all that and it runs amazing.. when it runs.. it depends.. if you just go with the bore, you wont get anything out of it but torque.. if you are looking for power you are going to have to look into the bottom end for that..

 

Why wouldn't it run all the time what's the problem. And how much would a big bore kit cost!

 

it has just been problems for me .. one thing after another .. mostly electrical.. nothing with my kit.. i'd go to www.powroll.com for big bore ideas .. maybe not purchases.. look around online.. 300's aren't advertised much for those kinds of things anymore in magazines .. nor were they ever really .. i purchased mine from a place out in cali called racers edge .. they were very helpful and got me what i needed.. if not powroll or online.. contact Pro Fab ATV.. they are located in Lancaster, Ohio.. I think they have a website also.. not sure, but they do excellent engine work