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Fitting on 454 CE block

1K views 6 replies 5 participants last post by  Chris R 
#1 ·
There is what appears to be a brass fitting between the 2nd and 3rd spark plugs on the driver's side of my 454. Is a fitting for a mechanical oil pressure gage?

Thanks.

Vince
'66 SS
 
#3 ·
Now for the next question. If it is for a water sensor, is it electrical (like a thermocouple or RTD) or is it for a mechanical temperature gage? I have factory SS gages but they aren't connected yet. I have an aftermarket mechanical temperature gage and it is connected to the intake near the water neck.

Thanks.
 
#7 ·
If your running an aftermarket intake. No need to even use that spot on the cyl. head, use the spot on the intake thats for it. Thats what I did. Just used a plug and thread sealant to seal that hole.
 
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