Nothing unusual about his break-in procedure....it is very similar to the Chevy break-in procedures during my training in the early 70's.....the only thing that you have to remember is if you are using a new cam, the break in procedure for the cam must precede the ring seating procedure. Simply put, you run the engine at no less that 2500 rpm until the engine oil temperature is at the same temperature as the cooling system...usually takes 15 to 20 minutes. And this, of course includes proper prelube and correct oil.
All the above is assuming that the engine has been properly fitted up. If for instance, the piston clearance is too tight...you will still toast a skirt the first time you put some heat in the motor, no matter how easy you are on it during a long slow attempt at a break in.
The absolute worst thing you can do to a new engine is to let it idle...the rings and cylinders will glaze and the rings will not seat....then you will have a oil sucking pig for a motor.
