The more I look at that Graham supercharger the more I like that idea. I had planned some sort of straight eight in it since the bay is so long and narrow. I wanted to find one for trade (the Auburn Speedster is the only one that comes to mind in kit form). Perhaps I can scratchbuild a close approximation to the supercharger from those pictures you shared. Thanks. Anyone have any leads on a straight eight or have a built up Auburn that they want to swap?
I have been trying to fill in all of the gaps in the fit between the hood and fenders and I have the gash at the rear of the cab roughly filled in so far.
A couple of ideas re: a straight 8.
1. You could, with little trouble, cobble one up out of two of the Plymouth 6s, to replicate the Chrysler unit.
2. Ron Royston (username here ronr) and Ken Kitchen both offer a nice variety of straight-8s in resin. Ron has a Buick, and Ken has a Buick and Pontiac. You might also be able to make two of Ken's Olds Big Six magically morph into the 257 straight 8, see if he might be willing to include an extra block/head/intake/exhaust manifold.
The blower would work well with any of those engines, and would add a special touch of wonder, especially if used with the Buick engine, which was a fairly powerful motor and that would make it especially so.
The supercharger used on the Graham is actually pretty close to the ones that A-C-D used on their straight-8s, and I think the Auburn kit has one already, so if it does, you're in luck.