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

Jadaharabi said
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You have to cut off about 2 inches of the tube in order to remove all of the screw in insert.
I used a black iron 1/2 inch npt pipe nipple from HomeDepot.
I inserted the tube into the pipe nipple then took a center punch and flaired the end of the tube inside the outside tube for a tighter fit before welding it together.

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I used a piece of 3/4 inch inside diameter pipe. to adapt the 1/2 npt pipe to the pickup tube.
The pipe nipple is butted up against the pickup tube inside the 3/4 sleeve.