do u know what year GM started to use the improved design? and if so do u know where to look on the block for the production date? i'm not sure what year this engine was made. just know it'* direct replacement for 00-05
The above picture is for. 2nd Design; w/Rubber-plastic end seals w/Locating pins; Lower set
Last edited by WoodyBalto; 02-05-2009 at 02:31 PM.