I used the Scat cast crank with Scat I-beam rods and Keith Black KB745 step dish forged pistons for my small block stroker build. I bought it all as an internally balanced kit but the balance was sloppy so local shop corrected it. I also had the new crank turned 10/10 because I was not happy with the run out and bearing clearances.

If you already have the crank and then go out and buy the same pistons and rods as I got then no mallory will be need to internally balance it. If you buy as a kit I'd have a good reputable local shop balance it.