When I bought my coupe project the guy included an engine that he said was a 1968 327. Well this weekend I took it all apart to inspect it and found that while the casting number shows it was used for many engines it has a 3.5 inch stroke, making it a 350. So from my understanding the 350 and 327 used a 4 inch bore and a 5.7 inch rod. So its just the crank thats different? Since its a large journal block I cant find a late 327 crank in any of the catalogs. What am I missing, is it more people just go with a 350 or is it just rare and no one makes it?