I will get some pics tonight 304 v8 came stock in some cj7s not sure if this one is stock or not and for the 91 s10 unless it is a beautifull truck he would have to throw in some cash not many 91 s10s are worth 2800$ and I would put som new rings in it before driving it every day but that is just me it starts runs and drives fine it just smokes a bit thanks