"Target Master" motors have been around for years. I remember installing one in the late 80's into a pickup with a buddy of mine. No frills, basic 2bolt main 350 sold through dealerships. I believe they were remanufactured rather than all new. Seems like there were all kinds of Target Master engines from V8's to V6' - you gave the dealer the application and they would pick the right engine from the list of Target Master engines available.