516 head question

PRH said

Unmolested 452 head, Ferrea f5055 valve, comp 612 locks, comp 741 retainer, and also a comp 1730 tool steel retainer(the TS retainers have more installed height).
A-741 retainer(1.928”)
B-1730 retainer(1.978”)

**I have seen where there can be slight variances in IH for different batches of the same part number of retainers and locks.

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thank you for taking the time to do that. other than the chamber, are the 452 and 516 valve location and geometry the same?
the 1730 retainer and the 1732 I got the 1732 it recommended with the 911 springs. I hope I got the right ones because I grabbed them off amazon then right after they jacked them up $100CAD.
So if shimming is all I need thats a win.

Happy thanksgiving to all down south and God Bless!