im not real sure...the 6.1L, i believe, is 370 cubic inches...although 6.1L is equal to 372.222...370 cubic inches would actually be 6.06L.

i think that alot of rounding goes on in engine sizes...

1L is equal to 61.02 cubic inches.

6.4L hemi would not be 392 cubic inches. 6.4 would be 390.58 cubic inches, and 392 cubi c inches would be 6.43cid.