Is there a way to determine if a block came out of a specific car built in 1966? Reason I ask is that I bought a 66 and it had an engine that was clearly date cast into the next production year. I bought a really nice block from a fellow who got it from the guy who took the car apart some 30 or 40 years earlier. I bought it because its a perfect undamaged block, and the cast date was before the cars build date.