NV WTB BBC 402 oil pressure line block adapter - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**71CHEVYSHORTBED402** · 01-22-2018, 10:33 PM

Looking for a clean OEM oil pressure fitting - that isn't rounded off like this one

Thank you

**w314speed** · 01-22-2018, 11:10 PM

Quote:

Originally Posted by 71CHEVYSHORTBED402

Looking for a clean OEM oil pressure fitting - that isn't rounded off like this one

Thank you

The factory line went into a fitting at the top of the block, through the firewall to the factory guage cluster. The later years mounted a oil pressure sender on the top of the block (same hole) or mounted in the block at the oil filter area (your picture). If you want to mount in the oil filter area match the fittings at any parts house with a direct line or use a sending unit. Hope, this helps! Thanks, Dan

**71CHEVYSHORTBED402** · 01-23-2018, 12:31 AM

Quote:

Originally Posted by w314speed

The factory line went into a fitting at the top of the block, through the firewall to the factory guage cluster. The later years mounted a oil pressure sender on the top of the block (same hole) or mounted in the block at the oil filter area (your picture). If you want to mount in the oil filter area match the fittings at any parts house with a direct line or use a sending unit. Hope, this helps! Thanks, Dan

Thank you.........

I think you said there's a chance my BBC had a sending unit, which I didn't know existed on these trucks. But I can use what I got, which are available at a part's house.

I wonder why they used a sensor? Seems just as well not to have one........My 72 402 has the same fittings in the same spot. Perhaps they chucked the sensor as well. The block in the image is off my 71.

**70STOVEBOLT** · 01-23-2018, 09:21 AM

Tony, I believe that is just a 3/8 to 1/8 pipe bushing.

**71CHEVYSHORTBED402** · 01-23-2018, 06:56 PM

Thanks a bunch for the clarifications. New bushing and done.

**LockDoc** · 01-23-2018, 11:44 PM

Quote:

Originally Posted by w314speed

The factory line went into a fitting at the top of the block, through the firewall to the factory guage cluster. The later years mounted a oil pressure sender on the top of the block (same hole) or mounted in the block at the oil filter area (your picture). If you want to mount in the oil filter area match the fittings at any parts house with a direct line or use a sending unit. Hope, this helps! Thanks, Dan

I don't think any of the big blocks had an oil port on the top of the block. They were all on the side of the filter boss like his. The only '67-'72 trucks that had senders were the ones with the warning light instrument clusters.

LockDoc

**71CHEVYSHORTBED402** · 01-24-2018, 01:06 AM

Quote:

Originally Posted by LockDoc

I don't think any of the big blocks had an oil port on the top of the block. They were all on the side of the filter boss like his. The only '67-'72 trucks that had senders were the ones with the warning light instrument clusters.

LockDoc

I'd say BINGO..............Thanks again Doc

01-22-2018, 10:33 PM	#1
71CHEVYSHORTBED402 Senior Member Join Date: Feb 2009 Location: Northern Nevada Posts: 7,189	WTB BBC 402 oil pressure line block adapter Looking for a clean OEM oil pressure fitting - that isn't rounded off like this one Thank you Attached Images __________________ Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly kit for restoring the (a) truck from the ground up. My build thread, and more on the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025

01-23-2018, 09:21 AM	#4
70STOVEBOLT Senior Member Join Date: Jun 2005 Location: Winona Lake, IN Posts: 6,254	Re: WTB BBC 402 oil pressure line block adapter Tony, I believe that is just a 3/8 to 1/8 pipe bushing. __________________ 70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear

01-23-2018, 06:56 PM	#5
71CHEVYSHORTBED402 Senior Member Join Date: Feb 2009 Location: Northern Nevada Posts: 7,189	Re: WTB BBC 402 oil pressure line block adapter Thanks a bunch for the clarifications. New bushing and done. __________________ Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly kit for restoring the (a) truck from the ground up. My build thread, and more on the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.