Bolt patern help

[D-a-n-i-e-l]

No not the bellhousing. My 250k sreries one SC is acting up. (about time, as I do rod the heck out of it)

I thought about rebuilding the one I have but as I research, price, and locate I have learned that the series two is much more common and easier to find. On the other hand I have many extra accessories for my series ones.

What I need to know is if the bolt paterns on the front of the engines are the same. If they are I am certain I can make use of all the extra parts I have, and save $200 on the purchase price of my next motor, by not needing all the extras.