Oil Pan drain plug - Big Block - The 1947 - Present Chevrolet & GMC Truck Message Board Network

CC69Rat · 04-02-2011, 08:20 PM

I have a 69 dated 396 in my truck. We are getting very close to firing it for the first time

We have discovered a small problem though, we noticed this morning just a small drip every 2-3 min or so .. so we tried to tighten it. It just seems small, and like it is not tightening up good. I went to Advance Auto Parts and bought another one. The parts counter showed 1/2 20. We put this one in, .. same deal.

My question is, would anyone know the correct size drain plug I need? Are the ones from Advance / Auto Zone just not the same quality as say a GM bolt? Bigger / heavier threads maybe? I'm really hoping the pan is not stripped out but honestly the bolt just feels too small.

Your thoughts please?
Thanks.

**chevy2tom** · 04-02-2011, 08:52 PM

Are you using a fiber or plastic washer with it?
Posted via Mobile Device

hugger6933 · 04-02-2011, 09:28 PM

They do make a pansaver drain plug. It comes in oversizes 1 ,2, and 3. When checking on the oversize plug make sure the washer is on it a stated above and that there is'nt one stuck to the pan as well. [I am saying make sure you have a washer just one]. I have seen two on the same plug causing what you have but I just think an oversize is in order.

CC69Rat · 04-03-2011, 01:21 PM

The OD of the bolt just seems small compared to the ID of the hole in the pan. Only one plastic washer. It will 'snug' up .. just not tighten up.

Would places like Summit sell the Pansaver plugs?

Wrenchbender Ret · 04-03-2011, 04:15 PM

Your pan is stripped out. Like hugger says there is oversize plugs available. They are self tapping & cut new threads. Any parts store should have one. Use a single oversize.

CC69Rat · 04-03-2011, 07:21 PM

Bought a single oversize today and it looks like we're all set! Thanks guys.

stsalvage · 04-03-2011, 10:02 PM

If you sell the truck dose she come with it LOL Hope the best for your truck

04-02-2011, 08:20 PM	#1
CC69Rat Registered User Join Date: Jan 2011 Location: Chattanooga TN Posts: 6,212	Oil Pan drain plug - Big Block I have a 69 dated 396 in my truck. We are getting very close to firing it for the first time We have discovered a small problem though, we noticed this morning just a small drip every 2-3 min or so .. so we tried to tighten it. It just seems small, and like it is not tightening up good. I went to Advance Auto Parts and bought another one. The parts counter showed 1/2 20. We put this one in, .. same deal. My question is, would anyone know the correct size drain plug I need? Are the ones from Advance / Auto Zone just not the same quality as say a GM bolt? Bigger / heavier threads maybe? I'm really hoping the pan is not stripped out but honestly the bolt just feels too small. Your thoughts please? Thanks. __________________ Chad 1967 C10 SWB - Project Savannah - 6.0/4L80 Currently underway 1968 C10 SWB - TOTY 2018, 50th Anniversary Tribute Project * Sold * Pride and Joy 1986 Silverado Short Fleet - Scarlet Sold 1985 Silverado Short Fleet Sold 2022 Jeep Gladiator Mojave 2001 Jeep Cherokee XJ 4x4 - Lifted, Built 1992 Jeep Cherokee XJ 4x4 - Lifted 2013 Honda Accord EX-L v6 Coupe 6spd (wife's ride)

04-02-2011, 08:52 PM	#2
chevy2tom Senior Member Join Date: Aug 2009 Location: Wheeling, Illinois Posts: 703	Re: Oil Pan drain plug - Big Block Are you using a fiber or plastic washer with it? Posted via Mobile Device

04-02-2011, 09:28 PM	#3
hugger6933 Registered User Join Date: Oct 2008 Location: Marianna Arkansas Posts: 7,280	Re: Oil Pan drain plug - Big Block They do make a pansaver drain plug. It comes in oversizes 1 ,2, and 3. When checking on the oversize plug make sure the washer is on it a stated above and that there is'nt one stuck to the pan as well. [I am saying make sure you have a washer just one]. I have seen two on the same plug causing what you have but I just think an oversize is in order.

04-03-2011, 01:21 PM	#4
CC69Rat Registered User Join Date: Jan 2011 Location: Chattanooga TN Posts: 6,212	Re: Oil Pan drain plug - Big Block The OD of the bolt just seems small compared to the ID of the hole in the pan. Only one plastic washer. It will 'snug' up .. just not tighten up. Would places like Summit sell the Pansaver plugs? __________________ Chad 1967 C10 SWB - Project Savannah - 6.0/4L80 Currently underway 1968 C10 SWB - TOTY 2018, 50th Anniversary Tribute Project * Sold * Pride and Joy 1986 Silverado Short Fleet - Scarlet Sold 1985 Silverado Short Fleet Sold 2022 Jeep Gladiator Mojave 2001 Jeep Cherokee XJ 4x4 - Lifted, Built 1992 Jeep Cherokee XJ 4x4 - Lifted 2013 Honda Accord EX-L v6 Coupe 6spd (wife's ride)

04-03-2011, 04:15 PM	#5
Wrenchbender Ret Registered User Join Date: Oct 2005 Location: Overland Park, Ks. Posts: 5,229	Re: Oil Pan drain plug - Big Block Your pan is stripped out. Like hugger says there is oversize plugs available. They are self tapping & cut new threads. Any parts store should have one. Use a single oversize.

04-03-2011, 07:21 PM	#6
CC69Rat Registered User Join Date: Jan 2011 Location: Chattanooga TN Posts: 6,212	Re: Oil Pan drain plug - Big Block Bought a single oversize today and it looks like we're all set! Thanks guys. __________________ Chad 1967 C10 SWB - Project Savannah - 6.0/4L80 Currently underway 1968 C10 SWB - TOTY 2018, 50th Anniversary Tribute Project * Sold * Pride and Joy 1986 Silverado Short Fleet - Scarlet Sold 1985 Silverado Short Fleet Sold 2022 Jeep Gladiator Mojave 2001 Jeep Cherokee XJ 4x4 - Lifted, Built 1992 Jeep Cherokee XJ 4x4 - Lifted 2013 Honda Accord EX-L v6 Coupe 6spd (wife's ride)

04-03-2011, 10:02 PM	#7
stsalvage Scrapper 1 Join Date: Jan 2007 Location: Riverside Calif Posts: 1,649	Re: Oil Pan drain plug - Big Block If you sell the truck dose she come with it LOL Hope the best for your truck

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