True if those things matter to the OP or not, if streetability and rpm ain't a huge deal to you then the advantages of cid might not be a huge selling point, depends what the OP wants. But yes seem most generally would prefer the advantages of cid.
They should/could be putting similar torque to the ground.
The OP should have no shortage with torque even with 340 and 4.56.
say at 1.25 lbs-ft per cid
363 x 1.25 x 4.56 = 2069 lbs-ft
454 x 1.25 x 3.55 = 2015 lbs-ft