The Conley engine has been an Internet darling for several years. First introduced to the public via an article in Hot Rod Magazine over 10 years ago, it became the defacto standard in miniature, push-rod based V8 engines when CNC machining was really not that accessible to most people. If you ever saw the video with the black Cobra rolling around with that engine, you'd swear it sounded like a real mini Cobra.
Yeah, it's a LOT of money to spend on a little toy. But the engineering that went into that thing is quite incredible. FWIW, the engine was patterned after a SB Chevy, hence the distributor on the wrong side.
-Dean