Shot peening engine block question

[SS427]

Thanks all for the input and yes Mark, I misworded that as it is NOT shot peening but rather shot blasting. HUGE difference!

I can see broach marks on some of the deck but not in the area that the stamping was done as it was just too pitted. I am hoping that it shows up better once blasted. I am not as concerned about the broach marks as I am the VIN stamping but will likely put a plate on it regardless just to make sure. I was also told by someone else that the rocker studs should be removed as the blasting tends to round the threads.