any of you guys know how to read engine... he goes,,,,the block I have wasnt.. OEM.. because it only has 248 stamped behind the dist. whats on the block is,, CWC GMC-5 6107328 G215 /// THE HEAD D6-1 2136477 AY.. any help would be great thanks,,,
Last edited by katrina; 08/14/2012 5:32 PM.