It will only require a visual inspection.

The lifter bores either have oil feed holes........ or they don’t.

I’ve only used one Indy block, and it didn’t get the lifter bore oiling mod.
No oil holes in the lifter bores.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads