I hoping for some guidance on what to look for in a salvaged 302 block. I am thinking I might try to build my own 347 for an RCR40. Certainly a crate engine would be easier, but not nearly as much satisfaction. YouTube seems to favor late 90's Ford Explorers as a source. Not sure if it makes a difference for a bored and stroked build. In addition to the roller assembly, probably also upgraded heads, cam, induction, timing chain, oil pan/pump, ignition, etc. Wondering if buying a wrecked/crappy car or truck might be cheaper than buying just an engine from a salvage yard. If I do go the salvage yard route, what to do a I say so that they think I know what I am talking about and don't take me to cleaners.