How Many PSI does the factory oil guage indicate? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mdwilf · 05-13-2010, 11:32 PM

I'd like to know if anyone know how many PSI the factory oil pressure guages are calibrated for? In other words, if it's at the far right hand mark, does that mean 60 pds oil pressure or 80 or what?

Thanks!!

CE20934 · 05-14-2010, 12:05 AM

Most stock gauges are 60 PSI. If you have the gauge out, along the lower right edge it will say "60 PSI" or "80 PSI".

Jacfourteen · 05-14-2010, 12:12 AM

Mine is 80 lbs, I found out when I had the cluster out. It is labeled right on the back like C20934 said. It probably depends on what motor you have and what pressure it was set up to run, my truck came with a 305 V6.

**leddzepp** · 05-14-2010, 12:24 AM

C/10- C/30 trucks came with 60 lb oil pressure gauges. The C/40-up trucks came with 80 lb gauges. If I am wrong, LHM will correct me on this one.

Jacfourteen · 05-14-2010, 03:29 AM

Quote:

Originally Posted by leddzepp

C/10- C/30 trucks came with 60 lb oil pressure gauges. The C/40-up trucks came with 80 lb gauges. If I am wrong, LHM will correct me on this one.

I wonder why my truck has the 80 psi gauge in it? I know that it is the stock gauge because my grandad owned the truck since 1971, and he never swapped it.

**StingRay** · 05-14-2010, 10:43 AM

The only 80 psi gauges I've ever round came out of the C40 and larger trucks.

**too much stuff** · 05-14-2010, 10:49 AM

Quote:

Originally Posted by StingRay

The only 80 psi gauges I've ever round came out of the C40 and larger trucks.

I have to agree with that. I have seen 60# gauges in bigger trucks, but never an 80#in a 10-30 series.

turp mcspray · 05-14-2010, 12:06 PM

I believe 80lb were for big blocks. I don't know if they only used them in big trucks or not. I have pulled several dashes out of big trucks and they were 60lbs.

Longhorn Man · 05-14-2010, 10:26 PM

I have no first hand info on this, but I have been told the majority of big trucks, big block trucks, and v6 trucks got 80 pound, the much more common inline and small block truck got 60 psi.

05-13-2010, 11:32 PM	#1
mdwilf Registered User Join Date: Feb 2009 Location: Jefferson City, MO Posts: 83	How Many PSI does the factory oil guage indicate? I'd like to know if anyone know how many PSI the factory oil pressure guages are calibrated for? In other words, if it's at the far right hand mark, does that mean 60 pds oil pressure or 80 or what? Thanks!! __________________ What I do in my spare time: http://rosebudsgarage.shutterfly.com

05-14-2010, 12:05 AM	#2
CE20934 Senior Member Join Date: Apr 2002 Location: Help! I'm in an office park with its own network of freeways! Posts: 470	Re: How Many PSI does the factory oil guage indicate? Most stock gauges are 60 PSI. If you have the gauge out, along the lower right edge it will say "60 PSI" or "80 PSI". __________________ '67 C20--427 tall deck/SM420, 4.10 HO52 (Michigan has not been kind to the Old Man) '95 Caprice--355 LT1/T56/3.42 8.5" 10-bolt (daily driver, almost 300k on the chassis) '07 Outback--wife's car. 125k & counting. No head gasket or transmission issues yet. fingers crossed

05-14-2010, 12:12 AM	#3
Jacfourteen Big Red - Now its a SWB! Join Date: Jun 2009 Location: Oroville, Ca Posts: 1,624	Re: How Many PSI does the factory oil guage indicate? Mine is 80 lbs, I found out when I had the cluster out. It is labeled right on the back like C20934 said. It probably depends on what motor you have and what pressure it was set up to run, my truck came with a 305 V6. __________________ 68 3/4 ton (Project)-350 Small Block, .030 over, 10:1 comp, 3998993 heads, C3BX edelbrock intake, comp cams XE268, Holley 670 SA, long tube headers, dual flow 40's, E-fan, Alum rad, currently under the knife getting shortened and bagged build thread 41 3/4 ton (wife's)-flatbed, fully restored to original 01 Tahoe LT 4WD (my daily driver)-Magnaflow Muffler, Rollin on 22's 02 Ford Mustang Convertable (Wife's Car)-Flowmaster 50, Clear corners, Intake, sittin on 18's

05-14-2010, 12:24 AM	#4
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 20,022	Re: How Many PSI does the factory oil guage indicate? C/10- C/30 trucks came with 60 lb oil pressure gauges. The C/40-up trucks came with 80 lb gauges. If I am wrong, LHM will correct me on this one. __________________ 1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul

05-14-2010, 10:43 AM	#6
StingRay Senior Member Join Date: Mar 2000 Location: Saskatoon,SK,Canada Posts: 2,476	Re: How Many PSI does the factory oil guage indicate? The only 80 psi gauges I've ever round came out of the C40 and larger trucks. __________________ Saskatoon, Saskatchewan Canada

05-14-2010, 12:06 PM	#8
turp mcspray Registered User Join Date: May 2007 Location: Rapid City South Dakota Posts: 2,359	Re: How Many PSI does the factory oil guage indicate? I believe 80lb were for big blocks. I don't know if they only used them in big trucks or not. I have pulled several dashes out of big trucks and they were 60lbs. __________________ Turp Mcspray New life for an old 2wd, farm blazer http://67-72chevytrucks.com/vboard/s...d.php?t=505987 My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=342299

05-14-2010, 10:26 PM	#9
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: How Many PSI does the factory oil guage indicate? I have no first hand info on this, but I have been told the majority of big trucks, big block trucks, and v6 trucks got 80 pound, the much more common inline and small block truck got 60 psi.



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