Hi I have a 74' 455 with std bore presently pretty much stock except for edelbrock750 carb, headers,performer intake,crower 60919 cam 1.5 roller tip rockers 6x4 heads with stiffer comp cam springs. It spun #4 rod and #2 main. I have not been able to determine what caused it yet.anyways, I don't know for sure yet but dont think the crank can be polished to get the light scratches out. For the cost of grinding it I can get a new crank from. So now at the point of probably bore 30 over and deck block. It appears both a stock(?) Kit and a stroker kit and both around same $ 1650. Obviously this is not a drag car but want a more fun street car. This motor has never impressed me for being a 455 th400 and 3.73 rear. Any suggestions would be great. I
