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Oil Pressure sensor location.
Hello, I have tried Googling this but not finding what I am looking for. There are two ports near my oil filter on this chevy 350 engine. The top port is open and the bottom one is plugged. All the pictures I am finding show the sensor going in the bottom port. I can remove the plug and put the sensor there bit am curious what goes in the upper port if I do. Can anyone tell me the function of the two ports? Do they do the same thing?
IMG_2597.jpg
Thank you for your help.
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Seasoned Citizen
I always use the 1/8" NPT port behind the China wall near the distributor -- that's what it's for. If you're going to use a port closer to the pump don't forget to plug this one or you'll have a gusher.
Dart Little M 406" SBC 800 HP N/A & 1,100 HP on nitrous, 2-spd Powerglide with trans brake, 6,000 RPM stall converter, narrowed Moser 88 3.90:1 spool with 35-spline gun-drilled axles & Torino bearings, custom parallel four-link, custom tube chassis & roll cage NHRA certified for 8.5-sec (only two FFR Hot Rods have this cert).
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I always use the "china wall" port also. BUT I notice on my new L31 block there is a 1/8" tapped hole above the oil filter. Never knew of a port there or ever saw one there,,, but its there. I assume I'll have a "gusher" if I don't plug it.......
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Steve >> aka: GoDadGo
Originally Posted by
NAZ
I always use the 1/8" NPT port behind the China wall near the distributor -- that's what it's for. If you're going to use a port closer to the pump don't forget to plug this one or you'll have a gusher.
Hanging With The Naz Man With The Port On Top The China Wall!
......Also, I'm pretty sure the larger hole is for The Clutch Z-Bar mount.
Last edited by GoDadGo; 02-07-2019 at 06:57 PM.
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Great! Thank You much for your help.
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