Typical oil pressure at head port?

[JeffGST]

I mounted an electric Autometer at the head port as seen in the picture below. While oil temps are cold, I get 25 PSI readings and 18 when at operating temps.

Is there a restrictor at that part of the head or is that just acceptable oil pressure at this port?

 

[TSIfreek]

Yea thats just a plug and alot of guys put a sensor there for oil pressure at the head. Your pressures sound great at the head.

 

[RipperXX]

Always wondered what the oil pressure was at the head. Anyone know the safe range? Min to max?

I might just get a greddy oil pressure guage.

 

[squeak10686]

does anyone know the acceptable oil PSI to the head?

 

[tsiboosted]

does anyone know the acceptable oil PSI to the head?

Well I dont know what "acceptable" would be but I have my oil pressure gauge tapped there and it reads between 24 - 27 PSI on my car. No more than 27 other than when it is cold on the start up. But yeah, between 24 - 27 PSI all the other times. But you have to remember I am putting my engine through much greater circumstances than most daily dirven cars. But it seems to be fine as I have never encounterd any issues at these pressures. I hope this helps.

 

[Ceddy]

Does anyone know, what thread size that plug is?

 

[slipstream808]

So is this more or less relaible than pressure from the oil housing? Or is it the same?
What is the pressure like normally from the oil housing?

I was thinking it might be a good idea because if there was an oil leak or problem, it might show up first at the head (low pressure/fluctuations). Or would my thinking be wrong.