Can I swap the 2.3 L engine in my 2005 fwd escape with a 3.0 V 6 and will it fit on same tranny?

No, you cannot directly swap the 2.3L I4 engine in your 2005 Ford Escape FWD with a 3.0L V6 and use the same transmission. The 2.3L engine uses a different transmission than the 3.0L V6. Even if you could physically fit the engine, the transmission bellhousing bolt patterns won't match. You'd need a complete transmission swap as well, along with likely other modifications to accommodate the larger engine (engine mounts, wiring harness, possibly even the exhaust system and more). It's a very extensive and complex project, far beyond a simple engine swap.