Lower rad hose? Entropy rad and truck water pump - The 1947 - Present Chevrolet & GMC Truck Message Board Network

NC_John · 06-16-2018, 07:59 AM

I'm trying to fit the lower radiator hose I need for an entropy (swap) rad and a truck water pump. I saw on another thread it was a 20687 but it didnt fit (too long, angles wrong). Anybody have another hose I can try?

Thanks

**mongocanfly** · 06-16-2018, 12:41 PM

I assume you have a LS swap...on my lower hose I never did find one that fit....I took 2 hoses and a aluminum sleeve and made one. ..

NC_John · 06-16-2018, 02:22 PM

Quote:

Originally Posted by mongocanfly

I assume you have a LS swap...on my lower hose I never did find one that fit....I took 2 hoses and a aluminum sleeve and made one. ..

Yes....with the truck accessories.

i thought the swap radiator would have the lower hose positioned the same (or very close) as a stock newer truck

Ghost's68 · 06-16-2018, 01:57 PM

Check out my build thread I have a part number for a hose that worked for me. I did have to shorten it but it worked great. I believe the 5th gen Camaro and truck WP are the same.

NC_John · 06-16-2018, 06:06 PM

Quote:

Originally Posted by Ghost's68

Check out my build thread I have a part number for a hose that worked for me. I did have to shorten it but it worked great. I believe the 5th gen Camaro and truck WP are the same.

I found it in your build thread. Looks like a Ford application hose.

I played around some more with the one I got and got it good and stuck on the water pump. So stuck I had to cut it off. Since it was now non-returnable I messed around and got it to fit by cutting off both ends. It's actually a tiny bit too short. I might buy another of the same one and trim it a bit more carefully. It was NAPA PN NBH7460.

**Curtb1971** · 06-17-2018, 10:55 PM

I used a NAPA 9131 with the truck pump and entropy radiator. Had to trim some of the hose to fit but it ended up fitting great.

Steve Cole · 06-18-2018, 09:49 AM

Are the hose fittings at least the same size?

NC_John · 06-18-2018, 02:41 PM

Quote:

Originally Posted by Curtb1971

I used a NAPA 9131 with the truck pump and entropy radiator. Had to trim some of the hose to fit but it ended up fitting great.

That looks like it might be a better fit than the 7460 I have on there now.

thanks

**Curtb1971** · 06-18-2018, 06:37 PM

Quote:

Originally Posted by Steve Cole

Are the hose fittings at least the same size?

Yes, fitting on the entropy radiator and water pump are the same.

Quote:

Originally Posted by NC_John

That looks like it might be a better fit than the 7460 I have on there now.

thanks

No worries

, give her a shot. I went through the same dilemma and had a pile of hoses to return to Napa

NC_John · 06-21-2018, 07:11 PM

Quote:

Originally Posted by Curtb1971

I used a NAPA 9131 with the truck pump and entropy radiator. Had to trim some of the hose to fit but it ended up fitting great.

Ends up that this hose is way too short for my setup. Your engine must be mounted a lot further ahead than mine. I've got mine as close to the firewall as I could get it.

**truckdude239** · 06-21-2018, 10:01 AM

i used a stock truck hose and cut the end down was little tight on the radiator side but a little lube it went on but i am using a stock truck motor and a cold case swap radiator

06-16-2018, 07:59 AM	#1
NC_John Registered User Join Date: Jul 2013 Location: Rockwell, NC Posts: 1,639	Lower rad hose? Entropy rad and truck water pump I'm trying to fit the lower radiator hose I need for an entropy (swap) rad and a truck water pump. I saw on another thread it was a 20687 but it didnt fit (too long, angles wrong). Anybody have another hose I can try? Thanks __________________ 1970 C-10 LWB "Blu" Instagram (current build pictures) 70_nc_c10

06-16-2018, 12:41 PM	#2
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: Lower rad hose? Entropy rad and truck water pump I assume you have a LS swap...on my lower hose I never did find one that fit....I took 2 hoses and a aluminum sleeve and made one. .. __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

06-16-2018, 01:57 PM	#4
Ghost's68 Registered User Join Date: Jun 2016 Location: American Canyon, CA Posts: 253	Re: Lower rad hose? Entropy rad and truck water pump Check out my build thread I have a part number for a hose that worked for me. I did have to shorten it but it worked great. I believe the 5th gen Camaro and truck WP are the same.

06-17-2018, 10:55 PM	#6
Curtb1971 Senior Member Join Date: Feb 2014 Location: Erie Colorado Posts: 1,022	Re: Lower rad hose? Entropy rad and truck water pump I used a NAPA 9131 with the truck pump and entropy radiator. Had to trim some of the hose to fit but it ended up fitting great. __________________ 1971 LSX "Bonnie" build thread http://67-72chevytrucks.com/vboard/s....php?p=8026381 paypal is curtbarton1971@yahoo.com

06-18-2018, 09:49 AM	#7
Steve Cole Registered User Join Date: May 2012 Location: Faith,NC Posts: 1,626	Re: Lower rad hose? Entropy rad and truck water pump Are the hose fittings at least the same size?

06-21-2018, 10:01 AM	#11
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: Lower rad hose? Entropy rad and truck water pump i used a stock truck hose and cut the end down was little tight on the radiator side but a little lube it went on but i am using a stock truck motor and a cold case swap radiator __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube



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