Help me ID this 55 chevy small block

My dad had a 55 before i was born. There is one photo of it somewhere. My brother had a 57.
I just saw a roller 56 for sale. Almost tempted, but i want to get my mopar projects done before i persue something else.
No money or time,divided between 3 projects means a lot of time to get them done.

i have always liked the tri-5’s.
Hot rods by any standard. Even the 4 slammers look cool to me. A customer’s car. 8D5461FC-D690-45FC-A83A-8539564192F5.jpeg