2.4 vs 2.2 eco 
i want to do a motor swap but i wont unless i have to..
should i buy an eco head and build one on the side............
nothing but performance from top to bottom.....
or do something to my ld9 ??????
 
 
If you already have a 2.4L the only two motors you should consider swapping to are the 3400 or the 3800.  Otherwise build the 2.4L  But your answer can be found in a post already on this page...conveniently titled 
The debate: LD9 vs Eco.  Read that and come to your own conclusion.
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"Youth in Asia"...I don't see anything wrong with that.