Yo! wink

I think 4onthefloor just about hit the nail on the head. The differences in weight in the 230 & the 292 block is in the 1 3/4" deck height increase, the longer rods and heavier crank. I guess you could add a pound or two for the 292s larger oil pan.

Still the 292 is a winner in terms of weight-to-power ratio, compared to the much larger and heavier 235/261 inlines.