It has the displacement of a big block (445 cubic inches). I wonder if the center to center piston spacing is still small block, like the larger GM engines. It is pretty compact. I’m going to say it is quieter than my 2001 V10 class C, but it may jus...
There are a number of different tunes out for it. The Premium Tune for motorhomes looks to be the default on E450s. When you hear it idle, it sounds like a muffled big block https://fordauthority.com/2020/05/why-7-3l-ford-godzilla-v8-engine-offers-t...
