There is a 79 Ford F-150 302/c4 near me for sale. How new can i go on a 302 that will fit in my 1970? Ive been looking for all the stuff I need to do a c4 on my I6-170. My brother and the guy thats gonna help me do it, says it would just be easier to buy a 302/c4 and drop it in as one. Would a 79 work? I thought there was some change mid 70s in the 302 that make it not fit? Thanks in advance.