Why not a 413 ?

I had a 413 out of a car long time ago. At that time I couldn't find any info or anything on it. I ended up using the crank in a 440 (nice forged crank that was factory drilled for a 4 speed.
I used the heads and exhaust manifolds on a 383 and gave the block away.

I later found out the piston rings from a Buick nail head 400/401 interchange