Thought block in my last post was a blower block as well until I recently discovered it's a D5 block. Literally, there is NO information about D5 Blocks outside of what folks have posted. All Hemi blocks at that time were cast here in Indy, but this has a different casting number. As far as I can tell, it is a normal casting with the heavier webs and a relocated exhaust pushrod holes.
Be nice to hear from someone who may know more about the D5 Blocks...
