318 crank into 340? pitfalls

I don't know.I'm really a chevy guy,:mob:,oh,oh,said the c word.it seems that mopar guys really love these 340's and I thought if I put $$$$ in the 340 if I ever decided to part with this car I might come closer to getting my $$$$ out.I really like the look of these cars and have been looking for one for a long time.but I don't know if I'll even like the thing when I start driving it.think its as much to buy parts for 360,318,so why not build the 340?:realcrazy: