<div class='quotetop'>QUOTE(02CHEV &#064; Apr 10 2007, 06&#58;23 PM) [snapback]89395[/snapback]</div>
the way i read it is that the 4.8, 5.3 & 6.0 are gen 3
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They are... But I think the engines in the GMT-900&#39;s are Gen IV&#39;s.