I6 Balancer Retention Bolt Modification

[Sharps40]

Question time.

I'll be doing a timeing cover seal and ready sleeve on the balancer of my I6 in John Lee (65 C10 with 71 Olds 250 block)

When I had Ol John Lee (64 C10 w/283) I installed the ready sleeve and seal and drilled/tapped the crank snout for a balancer retention bolt.

Being as how the I6 balancer is also a press fit, its been rebuilt once and now starting to drip, I'm considering drilling and tapping the snout of my crank for a similar retention bolt. A security measure, no sense in fixin the weep at the snout and then throwin a pully off because the interference fit has transformed into a slip fit!

Anybody out there done up the snout of an inline six with a retention bolt like can be done to a chevy V8?

Looking it over, I'm thinkin the same Mr. Gasket retention bolt for the V8 would work likety split on the inline 6. If not, a shorter and/or smaller diameter grade 8 bolt and washer could be rounded up.

Holler back with yer experiences. Thanks in advance.