My 16 year old son has a 73 Maverick as his daily driver. It has a 250 I6. He'd like to take on the challenge of swapping in a V8. I've never swapped an engine so we'd both be learning our way through it. I've seen several threads here on what parts are needed to pull it off, and that's a major help. My question though is how to go about selecting a donor V8. I don't want to spend the money to put a new crate engine in the daily driver of a 16 year old, so we're gonna have to do this on a much lower budget. My current thought is to buy a running 1996-2001 Explorer or Mercury Mountaineer for the 5.oL rather than buying a mystery engine that's been sitting in someone's garage or backyard for who knows how long. My thought is to just to get the running engine in the Maverick "as is" without any significant rebuilding or performance upgrades. Any upgrades could be performed later as time and money allow. Anyway, does this seem like a reasonable approach for a low budget swap? Are there any concerns with using an Explorer/Mountaineer as a donor? Does anybody have any other suggestions/opinions? Thanks.