They actually had various different powerplants; a massive ford V-8 ( 500 sticks in my mind; CID or HP...), 6-54 Detroit 2 strokes ( compounded X 2), a radial aircraft motor, and a funky Chrysler multibank ( 5 x 6 cylinder flathead truck engines).
There is a book at the local library that has an in depth breakdown; also a Chilton or Haynes manual for Sherman tanks, pretty cool actually.
I may be mistaken on the Detroit displacement; but it stuck in my mind because it was different. Like I said 6-71`s were everywhere along with 8-71`s & 8-92`s. I never worked on big enough iron to have experience with the V-12`s.
Awesomely simple, robust engines though. I recall an oil sampler vibrating out of No. 1 engine on a bank of 6-71`s at FULL LOAD / FULL THROTTLE. The Murphy switch killed it when the oil pressure went to `Zero`but No. 2 engine drug it along for a minute or two.
It looked like someone had dropped a grenade in a bbl of used oil. Black as tar oil dripping from a 10 foot roof and the walls as well. Toolie screwed a Player`s no filter in his mouth and said `Well put that f--king Sampler back in...tight this time. Fille`r up with oil and lets see what she`ll do`
2 min`s after that she was back on line and we were back making hole.
Now that`s tough!
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