Yes, I have mounting boss on the block for a starter.
https://butlerperformance.com/i-2445...i-p010004.html
and this is my starter
https://butlerperformance.com/i-2445...r-imi-123.html
This confirms the codes on the engine block
That's right, the starter is half on the flywheel. Additionally, the flywheel has flange.
The throw out bearing = 32 cm high (1 1/4 in).