In the LaserWriter II lineup, there are:LaserWriter IInt
LaserWriter IIntx
LaserWriter IIf
LaserWriter IIg
LaserWriter IIsc
The LaserWriter IIsc is a different design than the rest, so it is not compatable with the other setups. The NT is not the one to get. NT stands for "New Technology", NTX is "New Technology, Xpanded". The NTX logic board can handle 12MB of RAM max, and a SCSI HD for font storage. The one to get is the IIg logic board, because it has 12MB of RAM and built in Ethernet.
So in answer to your question, the IInt logic board will not fit in your IIsc.
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Captain Z - Sniper
68K Macintosh Liberation Army
17 68K Macs Liberated