Factory hole in my starter. Whats it for?

Coolbreezin

Active Member
I bought a starter off ebay from a reputable person (on this forum) a couple years ago. The starter body has a hole in it. It goes all the way through. I dont recall the kw's, but they are higher than normal. My factory unit doesnt have this hole.starter hole.jpg What would this be used for?
 
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