[virgil283]

don’t know the cubic inches but a PT boat had four of them.

[Rockpile]

I thought the PT boats had three engines. Now you made me have to look it up 😉

[Phlyer]

There was some variation, but the typical Packard Merlin was 1620 cu. in, which equates to 26.5 liters, so they were actually fairly close.

Just for the record, a standard Elco PT boat had three, not four of them. Not that it really matters - even one of them is serious power!