Most new engines use aluminum heads. As far as I know not one of them needs retorquing.

Retorquing is a gasket thing. It's also a belt and suspenders method to eliminate one possibility of failure. I can't blame 440Source for saying to do it because it hurts nothing and assures the heads are properly fastened to the block.

Bolts that use the torque angle method are causing the bolt to yield during tightening. This assures that the bolt is loaded to its maximum capability. So I wouldn't think those bolts would need retorquing. If you did retorque, you'd put the bolt farther into yield and probably cause necking down past the allowable.

My Mercedes engine has torque-to-yield rod bolts. They allow reuse as long as the necked-down portion is greater than the allowable minimum.

R.