It's not even that hard. We already know the displacement is 3400 cubic centimeters.
1 in = 2.54 cm
cube both sides: 1 cubic inch = 16.387 cc
Code:
3400 cc
--------------- = cubic in
16.387 cc
207.5 cubic inches
BTW, 2.2L is 134 cubic inches and 2.4L is 146 cubic inches.
If anyone wants to find out how many cubic light years are in a can of pop or something like that, I can do that too... B)