the 360 magnum was a completly stock lower end. It had hyper pistons and rings were never touched. I ran it for 2-3 years on the stock bottom block until I decided to change to the 408.
Rob Dunn 1976 Dart Sport 360 2000 dakota RT 408 with 150 nitrous 2013 Dodge Ram 1500 Hemi 2009 Jeep Patriot