1.3 8v,1.6 8v and a 1.6 16v are interference engines a 2.0 is a non interference engine so your good on undamaged valves and pistons. Get cam gears and timing chain your going to need them anyway then you can compression.

http://www.store.partsdinosaur.com/page8.html

The 8v engines aren't usually interference, and although I can't speak definitively about the 1.6 8v, I will do so for the 1.3 8v - it is NOT an interference engine.

On the 16v engines - Suzuki says that both the 1.6 & the 2.0 ARE interference - I've no personal experience with the 1.6 and I currently have a 2.0 and hope never to find out.

I got the timing chain kit  today & tomorrow I will pull it apart and decide how far while im into it .
 Ive had 1.3 that broke timing belt no issue 2 1.6 16 v that broke belts those were just line up the pullies put new belt on & away I went  Im hoping for the same with this 2.0

I put a timing chain set on & had compressin on cyl s 12&3 BUT NONE ON #4 pulled the head and found 2 open exaust valves piston looks ok guess its time to look for some valves & gaskets so far Im not a fan of the 2.0