Installed ACAUTOTECHNIC block adapter today. It is an adapter for gauges, threads are 1/8 NPT. If it were for an oil cooler I think that the port would have to be a lot bigger in order to accomodate the flow. Although, I dont understand the reason for 4 ports, 2 would be enough. I didnt get to take any pics I was pressed for time. The install went fine. The adapter fit well with no issues. Learned a lot today. The autometer oil temp was only designed to be used in the oil pan (called them). Currently, I have it on the block adapter and it pegs the 250. Will have to relocate it to the oil pan later. Does anyone know if someone makes a drain plug adapter for the oil temp that has a 1/8 NPT thread? I dont want to drop the pan to add a bung at this time.