Is there an plug in or outlet for warming the engine block in extreme cold?

cold weather kills batteries this time of year...heres why..most batteries are a chemical factory..the acid and water separate as the battery discharges..also the chemical process is lessened when the air temps go below freezing by around 50% or more depending on the age of the battery..in extreme cold areas, external heat sources are required to keep engines warm enough to run..in alaska for example,the batteries are taken out entirely and put inside to keep warm..sometimes a fire pit is used to warm the engine from below (red hot coals no flame)..also in very cold weather, the engine oil will get very thick..in some cases the oil will actually glue the engine semi solid..locking it up..if its a cheaper oil that whathappens..I like 20 miles north of st louis in illinois and when it gets below 30 degrees outside i place a under cabinet 350 watt heater(used for keeping food warm to serve) upside down under my engine overnite..this keeps the block warm and the oil thinned out..and works very well for me..my car will start whe no one elses will in my neighborhood..hope tyhis helps you..

You know what...there's nothing wrong with your engine...When metal is cold...it contracts...thus causing more friction between moving parts...this is why your motor runs rough in cold weather...I'm gonna give you a crazy suggestion...Have you heard of a "Block Heater"...it is a heated dip stick that you place in your engine overnight..
this device keeps your oil at operating temp overnight...so when you start your car....the block is warm...and the oil flows like magic..just pull out your dipstick...insert the block heater...and rest easy...of course...it has to plugged into a 110 volt outlet...You can find these online by Googleing it or go to www.yourautonetwork.com...Give it a try and let me know....I hope this was helpful....PEACE.....

You need to start with the basics. If all of your cylinders are in good shape, see what is missing, spark or fuel. This will get you started in the right direction. Look at the spark plugs, and see if you have spark at all of them.

Make sure you use synthetic oil with a low viscosity,and if you do not have a garage, get a block heater to prevent these dry starts that are potentially damaging.

In your neck of the wood you need to have a block heater to keep the car warm at temperatures that are below freezing will cause the transmission fluid and oil to gel, in the transmission the oil does not stay on all parts so if it freezes it can damage the transmission. There are additives you can add that will help with this problem however if the clutches freeze or the seals freeze you will damage the transmission. So if you can add transmission additive called Lucas conditioner and or change the fluid to synthetic transmission fluid the same with the motor oil. A block heater or synthetic motor oil with extreme cold the oil will drain off on all engine parts and transmission parts and can cause a dry start condition or no oil on major components in the transmission will cause damage to the transmission. The rubber seals in both the engine and transmission will get damaged and can be destroyed and cost you a lot of money.

A block heater would certainly help, especially based on your description. It may already have one, look around the radiator area for a plug.

If you are referring smaller air outlet on the cam cover of the engine, it would not add HP. You can add a little HP by making the engine "breathe" better by having better air filters like the washable cone type ones found in car shops. Another is by ensuring you are getting cold air. Others would put covers on one side of the air filter so the warm air from the engine will not go back to the engine. Other extreme ways are getting a cold air intake and adding turbo but may need further modification and tuning to make it efficient.

It is normal for oil pressure to be higher when the oil is cold. As the oil heats up, it will thin out. Since your oil pump is driven faster with the acceleration of the engine, your pressure will also increase. On a engine up to full temp, your oil pressure will probably be around 20 psi and maybe up to 60 at full load. But on a cold engine, you may see 60 psi at idle. I dont know if your high oil pressure is causing your vehicle to stall, but maybe your running the wrong weight/type of oil for your truck. If you live in a extreme cold area, you may want to look into a block heater to help warm up your engine faster.

Make sure you have good clean connections from battery to starter and ground. If all okay, you may want to have a starter draw test performed. 

Engine temp sensor could be faulty not letting enough fuel be commanded by the ECM .