I've gotten my hands on a DayStar Turbo 040, ideally I'd like to use this in an original Macintosh LC.

I seem to recall that when I actually got the LC ~20 years ago that there was a special LC PDS adapter that would allow you to fit the Daystar Turbos in, and this seems to be backed up by random snippets I've found on the internets:

"There are also adapters to put the PowerCache/Turbo040 into an LC PDS slot (which is wierd since the slot is only 16 bits wide). And there was another upgrade called the Value040 which is basically a Turbo040 that plugs directly into the LC PDS slot." (1)

and another thread that I think is on topic with the turbo040, but may be referencing the powercache card:

"To install in the LC series there is a tab on the metal shielding on the lid that has to be flattened and on the early LC there is a large capacitor siliconed to the top of a chip that has to be carefully pried loose and bent out of the way."

So, all that said, anybody have some wisdom to pass along here?

(1) http://www.applefritter.com/node/10092?page=1

(2) http://www.mail-archive.com/vintage.macs@mail.maclaunch.com/msg02210.html