Well Sadly the 8.1L Vortec is no longer made but I can tell you it is a fine engine. When you ask who makes the better engine Chevy or Ford you start a religious argument but when you ask who makes the better Transmission. EVEN FORD admits it is Allison (I kid you not though they do advertise their latest as "The answer to Allison", an admission Allisons are very good) I drove one for 15 years before a Semi totaled it while I was parked.
One thing you will quickly find
that 40' Bus was 8' wide
Your motor home is one of only two vehicles allowed on freeways that is over 8' wide with a permit (it's 8 1/2) I also drove (once) a Flat Bed Tow Truck (the other one) that extra six inches is "BIG". But it should not take you more than a day or two or a Trip or two to "Adjust"
I enjoyed my time driving my WorkHorse... But like I said a semi did just enough damage to total it... and I'm at a point in my life where I was starting to worry for medical reasons so the timing on that, I do not think it was an accident, was fantastic.
