first thing that comes to mind is how much more power will you gain by changing the bottom end and would it be worth the added outlay.any power gain is good but at what price do you say enough is enough
remember you not just buying the bottom end but you have the gaskets and belts to buy as well, if you get enough power increase then yes its worth it but if your talking an extra 10/20 bhp then imho then no it aint wobbly