Compacted graphite blocks are EXTREMELY heavy. The heaviest block I ever have picked up was the spare 99 Hemi block we had. It was a very short deck block with one side of the skirt milled away. No one likes machining them as they are hard on equipment too. FWIW my 99 Hemi ready to race, carbs to pan weighed in at 885lbs! For comparison my aluminum B1 is 525lbs

"I am not ashamed to confess I am ignorant of what I do not know."

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