Anybody out there have an image showing which case oil galley plugs get drilled and pipe plugged?

Thanks, Mark

Why not the smaller ones?

Because they don't tend to pop out, so the need to replace them is low. But there are plug kits that include the smaller ones (IIRC, Aircooled.net does). But remember, you must also buy drill bits and taps to complete the job, which makes it expensive and laborious for questionable benefit.

I did them all on the last two motors, so already have the drill and tap. I just didn't know most folks leave them in. I noticed the TypeIV store just sells the 3/8".