318/360 Crank/347 running on Dyno

So, it's the 285np with sixty thousandths removed off the top? Where can you get them??

Do you just turn the 360 crank down to 318 main size??

Yes it is and any machine shop or Summit or Jegs can get them. You turn the crank down but keep in mind the rear seal also has to be turned down to 318 diameter. J.Rob