Once it's bored, it will be 260. With a little trimming of un-needed fat, 240 - 250. And the other one was 230. So that's a 100 pound swing in weight for iron blocks. 1/2 of the savings of aluminum. I'm not advocating for any block, iron or aluminum. Just getting the info out there so we can all make informed decisions. For my stuff, weight is important. I don't think I'd use a 300+ pound block unless I was throwing a bunch of boost at it.