460cc stroker crank kit

[Raptor350yamaha]

I might be gettin a 400ex and was wondering if this would be reliable or not or if the 440 would be better. Not gonna get it right away but want to give people a chance to respond. heres a link here (http://motosport.com/product.jsp?path=-1|31987|28618|121139&id=287054)

[ride_red666]

if its built right itll be just as relaible as a stock ex. my friends has a 460ex and had his built at a local shop. still running strong after a year