The Stovebolt Site Forums The Parking Lot Panels 'N Burbs 1940-1946 panel truck questions

I'm looking at getting a 46 GMC panel truck.. I'm new to panel trucks but know my way around the 40s pickups...some days.

1) would the 216 engine be a direct swap to replace an old 240? Just for kicks, I would like to use a 1937 car 216 engine with the 3 speed floor shift...any idea if this would just bolt in...I know the 1940 car and tucks 3 speeds were the same save the shifter linkages

2) I would like to put a 40 front clip on this truck. Do you know where and how much I would need to shorten the frame?

also could someone post a pic of what an original interior would look like. I have a basic idea from seeing old ones but does anyone have one restored to original that I could see for reference

thanks