I'll give it a shot, and update/ edit if people see errors:
Morganson DG500 C.O.P. mod:
Coils:
Dg500(long boot) or DG528(short boot). Morganson mentions that long boot fits tighter, though it must be cut down somewhat in length.
The coils have a number of cross-reference numbers as well:
DG500 - DG513, FD502, C1458, DG513, 5C1449, C565, etc, etc...
DG528 - FD496, DG517, E228, F596, C1436, etc, etc, etc.
Again, the main difference is boot length, and some of these may have angled boots- Morganson, please chime in.
Connectors:
They're sometimes listed as" Denso coil on plug" connectors, and I've found a few auctions on Ebay for them. They're used on Jags, Fords, and even some motorcycles.
They have somewhat of a "D" shape to them, with one slot/tab on the top side, next to the release clip. I bought mine from seller: "motorsports_overstock" on Ebay- good price.
The harness requires you to either reuse the oem coilpack plug(4 wires), or purchase a new one. This can be had from Driftmotion.com, and is listed as the CPS plug- same thing.
The other(more affordable) option is to splice in to both side of the connection, ANY 4 wire male/ female plug setup you like. I like the AC Delco weatherpack connectors myself.
Also available for the cheap on Ebay.
Mounting:
Thanks to Nathaninwa, we have a 1/4" aluminum mounting plate that he can provide for a very reasonable cost. It can be set up so that you can mount the coils
above or below, depending on preference/ space restrictions. It mounts to the spark valley, by utilizing the threaded galley plug that you'll find(1) on the rear of the head.
You will need two of these, as there are two mounting holes drilled into the "Nathan plate". However, it may not really be necessary to 'hard-mount' this plate, as once the coils are bolted into in, they really ain't going nowhere.
I will add to this as I have more info.
Coil: DG500
Connector:
Harness plug:
Mounting Plate:
Threaded plug:
*EDIT* It also looks like the DG528 coil has its mounting tab offset differently than the DG500, so that would affect how you set up the mounting plate.