My take on the oiling system crossover tube for the small block

Ordered those, picked up legit 1/2” and 3/8” mpt pipe taps from napa, 3/8” o.d. steel tube also from Napa, 9/16” drill bit and some pipe fittings from Home depot, then ordered a 45/64” bit off ebay.

Should be good to go when it all comes in and be set for retirement on tooling. LOL

I’ve now got fron 1/8 to 3/4 npt taps, plus bits, plus an assortment of looooong drills.
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What are you using the 9/16 for?