the ford 302 is soposed to be 40 LB's lighter. there is a lot of info on www.hybridz.org i would go there and read some of the posts there if you are thinking of doing this. also the oil pan problem is an easy fix. there are two ways of doing this you can ither natch the front of it or you can go ger a double sump pan off a bronco and put it on it (the front sump is smaller and will clear by an inch or more). the two things that end up being clearance problems are the oil filter and the headers. i am planing on going with a 302 and i am not a ford guy im a chevy guy the ford engines are just better for this swap (lighter and will actually get you a 50/50 center balance if done right the chevys will get you close but not there and they are heavier) also if you want an easyer swap go with a chevy more people have done it and there is more info out there. i belive the most popular v-8 swap is a chevy 350.