IH Cub Engine 251341 R8

1964. The R8 engine block change was a modification to make room for the 12-volt starter, which was slightly larger diameter than the 6-volt starter.
 
(quoted from post at 06:54:54 08/21/15) 1964. The R8 engine block change was a modification to make room for the 12-volt starter, which was slightly larger diameter than the 6-volt starter.

Having said that, I'm guessing the later 12 volt starters will not fit a Cub prior to 1964?
 
Thanks for the replies. Here's a photo, I hope, of the tractor in 2012.
The engine and transmission survived the fire just fine and have been transferred to another tractor.
 
Trying again with the photo.
<image src="http://forums.yesterdaystractors.com/photos/mvphoto26343.jpg"/>
 
(quoted from post at 21:15:28 08/20/15)
(quoted from post at 06:54:54 08/21/15) 1964. The R8 engine block change was a modification to make room for the 12-volt starter, which was slightly larger diameter than the 6-volt starter.

Having said that, I'm guessing the later 12 volt starters will not fit a Cub prior to 1964?

Don't know, never tried. May depend on individual variation of the block castings.
 

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