What thermostat came with my 2010 srt8? Some state i should get a 180.

Also some talk about a hole in the thermostat, some said to put the hole up and other down. What is the correct way?

Ya'll think its too late for an oil catch can? 97000 miles.

Thx

 

OE is 203*, think I would stick with that.

Looking at pics, it appears the stock stat has a 'jiggler' in it, that allows air to escape easier. (thermostat doesn't have to open first) If your replacement has one, then, no need to drill a hole. If it doesn't, something like a 1/8th inch hole will be adequate to the task.

Never too late for the catch can.

 

Thank you but does the hole need to be at the 12 o clock or 6 position?

 

203° is stock.
Depends on the climate. Early 5.7's had nasty habit of sometimes dropping valve seats when overheated but I never saw a 6.1 that did it. Personal choice, if you're in a warmer climate the piece of mind of bringing it down to say 190° at the hottest might be worth it. If you're somewhere cooler/colder then maybe not because if it gets cold enough your heater may not.
The reason newer engines are designed to run hotter is 1) to burn excess moisture out of the oil/crankcase and 2) emissions. I have a 180° stat in my SRT 392; these things make enough heat that it routinely sits at around 190°-195° and it has an oil cooler just to make sure the oil doesn't get too hot (as I recall the 6.1 does not).
The bleed hole goes UP.
Never too late to add a catch can if you want to.
Edit: if you do change stats you will need to adjust the fan settings in the PCM to match

 

You want to run the stock temperature thermostat. Computers will inject extra fuel to warm the engine up unless you flash them to go out of open loop at a lower temperature. I've never worked on a modern Hemi so I don't know how it is oriented. The spring goes into the water jacket. Most thermostats have a jiggler to allow air through so you don't air lock. If the thermostat goes in the front of the engine, it needs to be on the top. If it goes flat into the top of the housing, it doesn't matter.

Catch cans are always a good idea.