What blocks do I have

I bought these many years ago off an engine rack at a wrecking yard that was closing. They were both complete (one dodge, one ply) with tags that indicated less than 90k miles. He didn't remember how long they had been in the rack but was many years. I broke them down right away and was happy with the condition, not baked or grungy. I threw away the cranks as I always intended to make them 451ci with Speed-o-motive kits. There are new players in town now and it is time to do it. I guess a sonic test of the 3614230 is next. I have been on the 440source web and "yes" it is the thick wide base main support style. Time to get busy.