Technical Scattershield pattern?

I’ve had this old scattershield for years, but I’m still unsure as to what it fits. It appears to be a left-hand side starter, making me believe it may be Mopar or even some early Olds? Anyone recognize it for sure?.

 

new

https://www.summitracing.com/parts/lak-15100

 

It's a Chevrolet.
In your top picture it is up side down.
It has the normal chevy bolt holes & dowel pin holes.
Plus the extra holes for the blockplate.

 

It looks to me like the starter bulge is on the same side as the clutch ball?

 

Nice work!

 

pontiac... here it is right side up



and a chevy

 

Ooops, I'm wrong

 

It matches up pretty well with 65 / 69 BOP stick bellhousings. This being one posted on Ebay eBay item number:350568513221