Does anyone know the length of stock starter bolts?

Reason I'm asking is I bought a stock starter. When I took the old one off and was checking how long they were in relation to the new starter so if have a good base for picking shims. There's like an inch and a quarter difference.

I forgot I put a small starter off a Ybody vehicle ( part number 17124s if anyone cares).

Now to use the stock starter is like to have some measurements.

Engin is in a Chevy blazer now and I have plenty of room for the more powerful stock starter and would like to use it. Thanks for reading.

 

93-94 LT1 inboard 1.87" part #14097279 outboard 4 11/16" #14097278

95-97 LT1 inboard 4.33" #12338064 outboard 1.33" #14037733

 

Thank you