S/B stroker block prep
A couple more shots of the lifter valley. What I've done is add 6 drainback holes (3/8")for the oil that puddles around the lifters. These holes are in stock blocks but missing with the repro and R blocks.
Be careful here. You don't want to drill into the cam bearing journal, nor the oil gallery. Locate both before you drill.
I have radiused the holes after drilling, but still need to tidy things up with a polishing cone. Still considering drainback lines from the new W5's to the oil pan. But that may be overdoing it.