That's what they weigh with all of their cast iron accessories. And if it's going in an A-body, it won't have all of those. A chevy water pump conversion, which is probably necessary just to get it to fit, takes a bunch of weight off the front end. So does an aluminum intake, as the stockers are very heavy. You can get a 392 down to factory big block weight with just a few aluminum pieces. And A-bodies came with factory big blocks, so, I think you're off base here.