Big valves for 300ex

[Israeli 300EX]

What guys you have to say about big valves for 300ex
(or others)?

Is it a long life mod?
Who build it on cylinder head?
Is it a special valve seat for big valves?

Who sales produce it and where to buy it?

[2muchquad]

i wouldnt waste your money unless your building a drag quad,topend is where your gain will be and it will be minimal.try a cam and exhaust system for your 300.theres also bore kits and stroker cranks if your really serious.if you insist of oversize valves try looking around on here.;)

[dork]

kibblewhite makes oversized intakes, and some places that sell them are web camshafts, or most shops that will install them like four stroke tech, curtis sparks, tc racing.

you don't need new seats, they just open up the stock ones and then recut the angles. it shouldn't affect reliablity when done right.