Here's an engine I'm doing for a friend, 1969 428 block.
I do this to all roller cam builds.
My own billet aluminum retainer sets:
8 mounting spots.
Huge surface area for epoxy (dykem area becomes epoxy area).
I finish grind them so they seat well at the most vulnrelable spots, that way I can preload these areas before the epoxy cures.
I have programs for both casting numbers 97X and 48X today.
Thanks,
Kris.
