Originally posted by PuckPuck:
just ran some quick calculations using 3.1415 for pi and it turns out you need to add roughly 14.25mm to the stroke (bring it from 79.5 to 93.75) in order to achieve 3.5L.... NICE 
And if you calclate what it would take to get to 3.5L with just boring out the cylinders, then add on a stroket kit, it'll come to a 4.1L engine!
Except if you're running 4.1L, you'll probably not be able to get enough air in to feed the engine with stock induction system (at least I don't think).
