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

Jadaharabi said

I think Yellow Rose posted pictures of this mod on one of the oiling system threads.

Click to expand...

I posted pics from a show where they were adding that oil groove to older chev block under the bearing shells.
They used an old grooved bearing she'll as a fixture and a die grinder to add the groove to the block and drilled extra oil holes in the bearings.