305 V6 Lower Radiator Hose - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**TomHel75** · 12-17-2024, 02:19 PM

Merry Christmas Everyone!
I am restoring a 1967 GMC 1/2 ton pickup with a 305 V6. I have to replace a leaking lower radiator hose (see three attached photos). As expected, I'm not finding one as I search the web. Any suggestions?
Thanks!

LS short box · 12-17-2024, 09:27 PM

I would take the old hose down to the local parts store and see what they have hanging up in the store room. Done that many time on my LS swaps. NAPA has been good but I've had the best luck with Oreilly's.

**67km1590** · 12-18-2024, 10:25 AM

That hose has some crazy bends, I lucked out and found a NOS one on ebay a while back. Google part #3898869.

**truckster** · 12-18-2024, 01:35 PM

I love that engine.

I've done the same thing as LS Short Box. If you have a friendly counter person at O'Reilly, they might let you wander through the hoses and see if you can find a close match.

Oh, and ditch the flex fan... also known as the flying Ginsu fan.

**Bob B.** · 12-18-2024, 10:24 PM

I think you need a NAPA NBH 7377 or Gates 20617:

https://www.jegs.com/i/Gates/465/206...x9wLiRqDxQANfO

**'68OrangeSunshine** · 12-19-2024, 01:59 AM

Hey do you have the part number for that GMC Valve Cover Plaid Spray Paint?
I wanna redo the valve covers on the 350 V8 in my '71 Jimmy.

**TomHel75** · 12-23-2024, 07:00 PM

Thanks everyone for your help in finding that radiator hose. I have a couple of great leads to pursue! As you'll see in the attached photos, the engine bay is just about complete. I've got about 200 miles on the rebuilt 305. It purrs like a kitten! I needed a break and putting it in winter storage is just what I needed (yup, I live in Minnesota!)
Regarding the plaid valve covers, check out this link: https://6066gmcclub.com/archive/index.php/t-49123.html
Enjoy the Holidays!
Tom

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**Steeveedee** · 12-23-2024, 09:25 PM

Quote:

Originally Posted by '68OrangeSunshine

Hey do you have the part number for that GMC Valve Cover Plaid Spray Paint?
I wanna redo the valve covers on the 350 V8 in my '71 Jimmy.

I'd like to do that on my truck. Buncha people would look pretty puzzled to see that paint scheme on a BBC. I love that plaid!

**kwmech** · Yesterday, 01:43 PM

So at one time that engine went soooooooo fast that it went plaid?

**Steeveedee** · Yesterday, 02:02 PM

^ What's that, like "ludicrous" speed?

**Bob B.** · Yesterday, 09:04 PM

Those valve covers were one year only, I think '64. The 'Scotch Plaid' pattern was supposed to emphasize the fuel economy of the new 305E version of the V-6. Yeah, kind of a joke but they look really cool. The pattern is actually printed right on the valve cover.

**DPowers** · Yesterday, 10:30 PM

Was 63 only. Its a vinyl like covering.

**Bob B.** · Today, 02:25 AM

You are right, '63. I have seen some in poor shape and the pattern was coming off like flaking paint. I have also seen some in great condition too.

12-17-2024, 02:19 PM	#1
TomHel75 New Member Join Date: Oct 2024 Location: Shoreview, MN Posts: 5	305 V6 Lower Radiator Hose Merry Christmas Everyone! I am restoring a 1967 GMC 1/2 ton pickup with a 305 V6. I have to replace a leaking lower radiator hose (see three attached photos). As expected, I'm not finding one as I search the web. Any suggestions? Thanks! Attached Images

12-17-2024, 09:27 PM	#2
LS short box Registered User Join Date: Jun 2015 Location: Carlos MN Posts: 2,132	Re: 305 V6 Lower Radiator Hose I would take the old hose down to the local parts store and see what they have hanging up in the store room. Done that many time on my LS swaps. NAPA has been good but I've had the best luck with Oreilly's.

12-18-2024, 01:35 PM	#4
truckster Senior Member Join Date: Jan 2001 Location: Orem, Utah Posts: 7,977	Re: 305 V6 Lower Radiator Hose I love that engine. I've done the same thing as LS Short Box. If you have a friendly counter person at O'Reilly, they might let you wander through the hoses and see if you can find a close match. Oh, and ditch the flex fan... also known as the flying Ginsu fan. __________________ I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson

12-18-2024, 10:24 PM	#5
Bob B. Senior Member Join Date: Aug 2005 Location: Los Angeles Posts: 1,367	Re: 305 V6 Lower Radiator Hose I think you need a NAPA NBH 7377 or Gates 20617: https://www.jegs.com/i/Gates/465/206...x9wLiRqDxQANfO __________________ 1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90.

12-19-2024, 01:59 AM	#6
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,506	Re: 305 V6 Lower Radiator Hose Hey do you have the part number for that GMC Valve Cover Plaid Spray Paint? I wanna redo the valve covers on the 350 V8 in my '71 Jimmy. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

12-18-2024, 10:25 AM	#3
67km1590 Junior Member Join Date: Feb 2022 Location: Ohio Posts: 78	Re: 305 V6 Lower Radiator Hose That hose has some crazy bends, I lucked out and found a NOS one on ebay a while back. Google part #3898869.

12-23-2024, 07:00 PM	#7
TomHel75 New Member Join Date: Oct 2024 Location: Shoreview, MN Posts: 5	Re: 305 V6 Lower Radiator Hose Thanks everyone for your help in finding that radiator hose. I have a couple of great leads to pursue! As you'll see in the attached photos, the engine bay is just about complete. I've got about 200 miles on the rebuilt 305. It purrs like a kitten! I needed a break and putting it in winter storage is just what I needed (yup, I live in Minnesota!) Regarding the plaid valve covers, check out this link: https://6066gmcclub.com/archive/index.php/t-49123.html Enjoy the Holidays! Tom

Yesterday, 01:43 PM	#9
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,635	Re: 305 V6 Lower Radiator Hose So at one time that engine went soooooooo fast that it went plaid?

Yesterday, 02:02 PM	#10
Steeveedee Who Changed This? Join Date: Jan 2013 Location: Simi Valley, CA Posts: 10,698	Re: 305 V6 Lower Radiator Hose ^ What's that, like "ludicrous" speed? __________________ ~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA

Yesterday, 09:04 PM	#11
Bob B. Senior Member Join Date: Aug 2005 Location: Los Angeles Posts: 1,367	Re: 305 V6 Lower Radiator Hose Those valve covers were one year only, I think '64. The 'Scotch Plaid' pattern was supposed to emphasize the fuel economy of the new 305E version of the V-6. Yeah, kind of a joke but they look really cool. The pattern is actually printed right on the valve cover. __________________ 1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90.

Yesterday, 10:30 PM	#12
DPowers One foot in front of the other Join Date: Aug 2008 Location: Parrottsville, TN Posts: 5,443	Re: 305 V6 Lower Radiator Hose Was 63 only. Its a vinyl like covering. __________________ DP's 66 Build http://67-72chevytrucks.com/vboard/s...d.php?t=361556

Today, 02:25 AM	#13
Bob B. Senior Member Join Date: Aug 2005 Location: Los Angeles Posts: 1,367	Re: 305 V6 Lower Radiator Hose You are right, '63. I have seen some in poor shape and the pattern was coming off like flaking paint. I have also seen some in great condition too. __________________ 1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90.



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