Actually there's not supposed to be more than four or five hours of run time since a new set of rings and bearings.looks good. possibly a season or two on the bearings.
Mag and polish the crank, new bearings and oil pump and enjoy the summer.
But there are no pics of the bore, rings, and piston tops. If they look the same than you might be all good.
Question, what are the limits of a GM crank, when I built my engine I was planning on 10-12lbs boost and was told I must buy a good crank. Ended up with 13lbs boost and each rebuild it checks out good.