Oil Pressure Line Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cgster · 08-07-2016, 10:41 PM

Installed a new 350 engine in my truck and the oil pressure line doesn't seem to fit anywhere on the engine or the hole is a different size. Is there an adapter or something I can use so I can still have my oil gauge work?

My original line:

GASoline71 · 08-07-2016, 11:20 PM

That part of the fitting fits inside the fitting that screws into the back of the block. The one that fits in the block I believe is 1/8" NPT and that part at the end of the copper line fits in to that.

Don't start your new engine without anything in that hole in the rear of the block or you will have oil EVERYWHERE!

...ask me how I know...

Gary

71swb4x4 · 08-07-2016, 11:23 PM

Here is an adapter: http://67-72chevytrucks.com/vboard/showthread.php?p

cgster · 08-07-2016, 11:24 PM

Quote:

Originally Posted by 71swb4x4

Here is an adapter: http://67-72chevytrucks.com/vboard/showthread.php?p

Link sent me to an error page

cgster · 08-07-2016, 11:34 PM

Quote:

Originally Posted by GASoline71

That part of the fitting fits inside the fitting that screws into the back of the block. The one that fits in the block I believe is 1/8" NPT and that part at the end of the copper line fits in to that.

Don't start your new engine without anything in that hole in the rear of the block or you will have oil EVERYWHERE!

...ask me how I know...

Gary

lol I found out the hard way myself....
Do you happen to have a link to the one that I would need? Thanks.

71swb4x4 · 08-07-2016, 11:38 PM

Try again: http://67-72chevytrucks.com/vboard/s....php?p=7455766

Edit: and from another of LockDoc's threads: "The male end is 1/8" pipe thread and the line fitting (compression sleeve nut) screws into the other end."

Gromit · 08-07-2016, 11:39 PM

Here is a photo but this is not as good as SWB4x4 because I don't know the part number or where to buy.. Maybe Ace Hardware too; theirs are all non-lead fittings now and they are more expensive than the automotive versions that are still okay with lead content in the bronze...

If you have the dual dipstick block make sure your dipstick tube hole in the block (opposite of wherever you put the dipstick) is plugged with that little steel plug.. passenger side or drivers side..No offense I hope but I just have read about so many people missing that..

cgster · 08-07-2016, 11:42 PM

Quote:

Originally Posted by 71swb4x4

Try again: http://67-72chevytrucks.com/vboard/s....php?p=7455766

Edit: and from another of LockDoc's threads: "The male end is 1/8" pipe thread and the line fitting (compression sleeve nut) screws into the other end."

Great, thanks!

cleszkie · 08-08-2016, 01:14 PM

Quote:

Originally Posted by GASoline71

That part of the fitting fits inside the fitting that screws into the back of the block. The one that fits in the block I believe is 1/8" NPT and that part at the end of the copper line fits in to that.

Don't start your new engine without anything in that hole in the rear of the block or you will have oil EVERYWHERE!

...ask me how I know...

Gary

I could have been worse! Once, I forgot to reattach that line to the back of my gauge. Oil everywhere INSIDE the truck

tommys72 · 08-08-2016, 02:13 PM

Quote:

Originally Posted by cleszkie

I could have been worse! Once, I forgot to reattach that line to the back of my gauge. Oil everywhere INSIDE the truck

Hmmm...i did that once too. Guess where the oil went? All over my brand new medium blue carpet....it took alot of scrubbung and different chemicals and even more cussing, but i got it all out finally

davepl · 08-08-2016, 02:33 PM

I guess I'm not the first, second, or third to have accidentally run the truck without the gauge connected! I got lucky in that it landed on a floor mat, though.

**pjmoreland** · 08-31-2020, 07:43 PM

I spent quite a bit of time last night searching through old posts trying to find information on the engine block adapter. I headed over to Napa today and they sell them. Their part number is 6200x2.

Male Connector - 1/8" Tube O.D., 1/8" Male Pipe Thread

https://www.napaonline.com/en/p/WH_6...rdInput=6200x2

**LockDoc** · 08-31-2020, 08:49 PM

-
Here is a thread on it.

http://67-72chevytrucks.com/vboard/s...d.php?t=613238

LockDoc

**pjmoreland** · 08-31-2020, 08:52 PM

Quote:

Originally Posted by LockDoc

-
Here is a thread on it.

http://67-72chevytrucks.com/vboard/s...d.php?t=613238

LockDoc

Yes, I did see that thread last night, and I will be using your instructions on bending the tube. Thanks!

08-07-2016, 10:41 PM	#1
cgster Registered User Join Date: Aug 2015 Location: Texas Posts: 328	Oil Pressure Line Question Installed a new 350 engine in my truck and the oil pressure line doesn't seem to fit anywhere on the engine or the hole is a different size. Is there an adapter or something I can use so I can still have my oil gauge work? My original line: Attached Images

08-07-2016, 11:23 PM	#3
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	Re: Oil Pressure Line Question Here is an adapter: http://67-72chevytrucks.com/vboard/showthread.php?p __________________ Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.

08-07-2016, 11:38 PM	#6
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	Re: Oil Pressure Line Question Try again: http://67-72chevytrucks.com/vboard/s....php?p=7455766 Edit: and from another of LockDoc's threads: "The male end is 1/8" pipe thread and the line fitting (compression sleeve nut) screws into the other end." __________________ Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.

08-07-2016, 11:39 PM	#7
Gromit Registered User Join Date: Jul 2015 Location: Central Coast, CA Posts: 501	Re: Oil Pressure Line Question Here is a photo but this is not as good as SWB4x4 because I don't know the part number or where to buy.. Maybe Ace Hardware too; theirs are all non-lead fittings now and they are more expensive than the automotive versions that are still okay with lead content in the bronze... If you have the dual dipstick block make sure your dipstick tube hole in the block (opposite of wherever you put the dipstick) is plugged with that little steel plug.. passenger side or drivers side..No offense I hope but I just have read about so many people missing that.. Attached Images

08-08-2016, 02:33 PM	#11
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	Re: Oil Pressure Line Question I guess I'm not the first, second, or third to have accidentally run the truck without the gauge connected! I got lucky in that it landed on a floor mat, though. __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

08-31-2020, 07:43 PM	#12
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 6,011	Re: Oil Pressure Line Question I spent quite a bit of time last night searching through old posts trying to find information on the engine block adapter. I headed over to Napa today and they sell them. Their part number is 6200x2. Male Connector - 1/8" Tube O.D., 1/8" Male Pipe Thread https://www.napaonline.com/en/p/WH_6...rdInput=6200x2 Attached Images

08-31-2020, 08:49 PM	#13
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,818	Re: Oil Pressure Line Question - Here is a thread on it. http://67-72chevytrucks.com/vboard/s...d.php?t=613238 LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

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