I have come across an amazing deal on an f4. but it may have title issues.The engine only has 2k on it, and its set up for GP shift. How much different is the f4 engine from the f3? I have a 96 f3, with 40k on the clock and the f4 engine might be a nice donor when the time comes..

 

The f4 engine makes a bit more power and is otherwise the same, i.e ram air and such.

 

essentially the motors are the same. honda did not change much on them. smart choice on their part.