The world just shifted on its axis...

I can picture him a pair of "tandem" inline slant sixes, but a Hemi would be out of character at this point. Or maybe he already had a hand in this:

Thirty cylinders, five banks, five carburetors, five distributors, 1255 cubic inches. This is what happens when Detroit goes to war. Chrysler built the A57 as a way to satisfy a World War II tank-engine contract in a hurry, using as many off-the-shelf components as possible. It consisted of five 251-cube passenger-car inline-sixes arranged radially around a central output shaft. The resulting 425-hp pile of hairy freedom powered M3A4 Lee and M4A4 Sherman tanks.

The 10 Most Unusual Engines of All Time – Feature – Car and Driver