yeah thats true, will there engine swap in a mustang without any problems? my quest is to get a 4v, whether its iron or aluminum, and swap on at eaton on it, yeah i could go with a centri or what not, but the power goal im looking for can be had from a ported and pullied eaton, which most likely means I will forge internals, but in the mean time I would just run 8-10 psi on the compression thats already there. but anyways, i jsut want a 4v w/ an eaton conversion.