Pickup Size vs P-90

[GuyaGuy]

Hi all. New guy here...I've searched here and Googled my little fingers off but can't find this info.

What is the size of a Mosrite pickup?

According to this thread the rings are 10.1cm x 4.8cm.
viewtopic.php?f=20&t=5368

But what about the actual pickup dimensions?

The reason I ask is that I have a lovely 12er copy with P-90s and I have not found pickups that I've been satisfied with. I'm considering getting M3 pickup. I'm sure I'd be happy with the P-90-sized ones, but I'd love to have the Mosrite-sized ones as long as it just requires minor modifications. Here's the 12er:

[BlackieOnasis]

Oddly enough, I've got a Filmore / Mosrite Japan (via ebay) cover & ring as well as a p90 cover sitting right here at my desk. Assuming that the Japanese cover and ring are the same size as vintage units, I can tell you right away that the Mosie ring will cover the p90 route. You'd need to make the route a little "taller," and cut your pickguard to fit the ring, but at first glance, it will work. Gimmie a minute to pull some measurements here.

[BlackieOnasis]

My p90 cover is 34.83mm x 85.46mm - so call it 35 x 85.5 to be safe.

The Mosrite cover I have measures 37.6mm x 75.94mm, so call it 37.75 x 76 to be safe.

The Mosrite ring measures 48.25mm x. 99.85mm, so the measurements in the thread you mentioned are pretty close to what I've got.

Nice looking axes, BTW.

[BlackieOnasis]

This should illustrate the size differences pretty well.

[GuyaGuy]

Excellent. Thank you, BlackieO!

Looks like I'll mostly need to cut the guard and make the routes 2.6mm taller. That seems doable.

I had to cut the guard already to add the vibrato. I didn't do the best job so I might cut it for the pickups and then draw it based on the modifications to get a custom guard built.

[GuyaGuy]

FYI (and as a PSA):

I gave up this idea. I figured out that the string spacing on Mosrites is fair bit narrower than on a P-90. I guess I'll go ahead with the original plan of getting the M3 P-90-shaped Mosrite pickups.