'69 340 engine

ok, they came with either the bolt with hole [go's in the upper left hole if ur looking at the motor] or a drip plate////or both.

the oil comes from the valley, runs through and then drips onto/or is drawn onto the timing chain and or drip plate, the drip plate just aims the oil run off at the chain.

Ive drilled my own, I like the lil hollow bolt and plate.

but as long as u have one or the other...you'll be good.