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

jad
no sealers under the bearing shell or cap parting line-
the top of the bearing where the oil hole is is where the most clearance and leakage is but you do need to feed the rods so you have to run a half grove or 3/4 grove
bearings
The popular oil feed diagram is for inline engines and shows best place to feed is somewhere around 4 oclock now with a V8 you have, in theory, two locations, one for the loads from each bank. HOWEVER IMHO the perfect spots moves around in a running engine hence from the side as it's an easy mod and in theory feeds the hydrodynamic wedge on the lower shell