Ryan, I know you already told me in a PM "Took us 16 hours on the CNC but we managed to take your block from 232 lbs down to 178.5 lbs. Keep in mind a stock 340 is around 162-165 lbs.... this is by far the lightest Tall deck R3 I've seen." But how much of that record lightness is from the large bore size? In other words if this was 4.00" bore what do think it would weigh?

Also, if you decked this block to minimum deck, which I think is 9.200" how much do you think it would take off? I was told you can take off #40 by max decking a block like this, but I am thinking more like #25. Maybe if it was cast for a 9.00 deck and machined to that height it would be #40 lighter than a tall deck.

Ron.