Some more pictures.

Also the distributer might be an Aldon 45D distributer. The model number would be inscribed on the body, such as, AY100, which is an Aldon yellow version. There is also a red version which would be AR100, I believe. A "V" after the 100 indicates one with a vacuum advance.

I cannot quite tell from your photographs.  Take a close look at the coil and the wires connected to it.  Post back with what color wires are on the coil's + and - terminals.  Look carefully at the wire colors as they often fade a bit with age.

So its a 1275 A+ block, 286 cam, 1380 CC, possibly 45D distributor. Is it ballasted or not? 

thanks everyone. 
Jack

1275 A+

Kermy, 

Thanks, I will get a picture of the distributor. The Mini is a hodgepodge I'm sure. It started life as a 1967 and was reshelled. I would imagined the motor was resourced as well. I bought it as a driver, so I wasn't too concerned about everything being original. Now, I am trying to track down all the necessary information to maintain it. 

Jack

The distributer clamp is the key identification feature, so a post a picture of the bottom if possible. The picture would also show the reinforcing ribs of an A+ motor on the lower front of the blocks. I'm guessing an A-series 45D distributer which has what are called "sliding points" also distinguished by the blue rubbing block. These points automatically "slide" the contact patch of the points back and forth to increase longevity. Your engine plate is a number I'm familiar with. Is your Mini a Japanese model?

Pictures of my distributor and engine.

Thanks for the assistance.

Jack

Here is a picture of my engine ID plate:

Thanks Doug. I will post some pictures tomorrow. 

Hi and welcome.

Others may be able to help you with the block number you found.  I don't recognize it.

The following won't confirm the claimed 1380 but it can help identify large or small bore.  Locate the heater valve on the top of the cylinder head.  If the heater valve and its foot foot are pointing straight forward, it's a small bore engine/head.  If its body and mounting foot are "angled" relative to the front of the car, it's a big bore engine/head.  

If you see stiffening ribs cast into the front of the block, it's a later A+ block.  Don't let the oil filter and its mounting head fool you.  They are easily swapped.

The best way to identify your distributor is if you post a couple of detailed pictures here both with and without the cap installed.  There were several distributors used on the Mini for both the A and A+ series.  There are also quite a number of aftermarket distributors available in both points and electronic configurations.

Looking for some additional assistance on Engine ID. Also, how do you figure out which distributor your car has. 
I just bought a mini. based on the alternator and oil filter, i'm guessing an A+. The motor number is 21277638? its on a plate where the motor number is supposed to be. Don't know if that is added by a preparer or something. Supposed to be 1380cc. Any help would be appreciated. 

Jack Reall
Sunbury, OH