I'm doing a rebuild on a 2.4 motor,  i'm just wondering what parts i can re-use,  which parts dont really wear out,  i was thinking,  actual pistons with new bearing, timing chain, valves and springs, etc. motor has 236,000 kms.
 
The block doesn't usually break... unless you smash a rod or piston (or both) through it 
 
I think the IDI cover is pretty safe to re-use... maybe the timing chain cover too.. heh.. 
 
 
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you really won't know untill you grab a micrometer.
CAR GODS MADE THE 1.6 SOHC TO MAKE US 2.2 OHV GUYS FEEL BETTER.