True, but many have the ECM programmed to prevent WOT until water temperature is up.

On my old 426 wedge Dyno mule there was a 20+ hp difference between cold oil and hot oil using 15/40. Warm the oil.

Actually, hot air rises. Heat goes where it's pointed.

Kevin

I did some oil temp testing on the first motor I dyno tested, I saw 8 HP gain from 130 F oil temps with straight 30 wt. oil to 170 F
Later on I switch to 10w30Wt on a different engine and the same brand DTS dyno and saw 3 HP gain difference between 130F and 180 F
On the next motor I built and dyno tested I switch to 5W20WT and saw no HP differences between 70F and 220 F oil temps

Hot water rises, the "thermosyphon" effect allowed some small engines to work with a radiator above the jacket, but no pump.

my world screw in freeze plugs is the same thread as the brodix.
summit or jegs has adapters to screw in the block then 3/4 pipe threads screw into the adapters

Are the KB threads the same as the World and Brodix?

On both of my cars I have 2 block heaters and an in pan oil heater wired to one plug. Also run a 180 thermostat. These are on alcohol. For the screw in plugs on my Indy block, I tapped them for 3/4 NPT and used the heaters from Jegs. On alcohol, heat is your friend. The hotter the air temp, the better the fuel is vaporized. My cars will start and run like a street car, even in 46 degree Dallas.

RIP