The Chrysler 'multibank' engine was FIVE six cylinder auto engines arranged around a common shaft. it was used only (? i see one page that says this, others that have it in a Lee & a Firefly!) in the M4A4, and not by US forces, but allies only, mostly British, under Lend-Lease.
(source: see http://www.armortek.co.uk/Sherman/sherman2.html)
the M4A4 had a longer hull to accomodate this engineering monstrosity.
only pic i saw was on:
http://afvinteriors.hobbyvista.com/m4fac/m4fac3.html
(scroll to the bottom)
i read AFVinteriors will not be w/ us much longer, so grab all the data from there you can & FAST!!)
Riddleusmc - you are thinking of the Continental radial aircraft engine. that was different.
i wish Robert were here.
you would have more Sherman info, faster & more depth & accuracy.
now you are stuck hearing stuff from
me.
and i only know what i looked up a minute ago.