I've been trying to determine how many MB's the HD inside my Lisa is... the only indication I have for anything is the number of blocks. Is that how one tells what the internal HD size is?
Technically on a Lisa with a Profile or Widget HD a block is 532 bytes instead of 512, but that extra 20 bytes is a tag used by the filesystem, not user data. So, yeah, two blocks a K or 2048 blocks per (binary) megabyte.