The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-16-2018, 07:59 AM   #1
NC_John
Registered User
 
NC_John's Avatar
 
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
NC_John is offline   Reply With Quote
Old 06-16-2018, 12:41 PM   #2
mongocanfly
Post Whore

 
mongocanfly's Avatar
 
Join Date: May 2015
Location: Alabama
Posts: 14,579
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
mongocanfly is offline   Reply With Quote
Old 06-16-2018, 01:57 PM   #3
Ghost's68
Registered User
 
Ghost's68's Avatar
 
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.
Ghost's68 is offline   Reply With Quote
Old 06-16-2018, 02:22 PM   #4
NC_John
Registered User
 
NC_John's Avatar
 
Join Date: Jul 2013
Location: Rockwell, NC
Posts: 1,639
Re: Lower rad hose? Entropy rad and truck water pump

Quote:
Originally Posted by mongocanfly View Post
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
__________________
1970 C-10 LWB "Blu"

Instagram (current build pictures) 70_nc_c10
NC_John is offline   Reply With Quote
Old 06-16-2018, 06:06 PM   #5
NC_John
Registered User
 
NC_John's Avatar
 
Join Date: Jul 2013
Location: Rockwell, NC
Posts: 1,639
Re: Lower rad hose? Entropy rad and truck water pump

Quote:
Originally Posted by Ghost's68 View Post
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.
__________________
1970 C-10 LWB "Blu"

Instagram (current build pictures) 70_nc_c10
NC_John is offline   Reply With Quote
Old 06-17-2018, 10:55 PM   #6
Curtb1971
Senior Member
 
Curtb1971's Avatar
 
Join Date: Feb 2014
Location: Erie Colorado
Posts: 1,007
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
Curtb1971 is offline   Reply With Quote
Old 06-18-2018, 09:49 AM   #7
Steve Cole
Registered User
 
Join Date: May 2012
Location: Faith,NC
Posts: 1,623
Re: Lower rad hose? Entropy rad and truck water pump

Are the hose fittings at least the same size?
Steve Cole is offline   Reply With Quote
Old 06-18-2018, 02:41 PM   #8
NC_John
Registered User
 
NC_John's Avatar
 
Join Date: Jul 2013
Location: Rockwell, NC
Posts: 1,639
Re: Lower rad hose? Entropy rad and truck water pump

Quote:
Originally Posted by Curtb1971 View Post
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
__________________
1970 C-10 LWB "Blu"

Instagram (current build pictures) 70_nc_c10
NC_John is offline   Reply With Quote
Old 06-18-2018, 06:37 PM   #9
Curtb1971
Senior Member
 
Curtb1971's Avatar
 
Join Date: Feb 2014
Location: Erie Colorado
Posts: 1,007
Re: Lower rad hose? Entropy rad and truck water pump

Quote:
Originally Posted by Steve Cole View Post
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 View Post
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
__________________
1971 LSX "Bonnie" build thread
http://67-72chevytrucks.com/vboard/s....php?p=8026381
paypal is curtbarton1971@yahoo.com
Curtb1971 is offline   Reply With Quote
Old 06-21-2018, 10:01 AM   #10
truckdude239
Senior Member
 
truckdude239's Avatar
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,217
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
truckdude239 is offline   Reply With Quote
Old 06-21-2018, 07:11 PM   #11
NC_John
Registered User
 
NC_John's Avatar
 
Join Date: Jul 2013
Location: Rockwell, NC
Posts: 1,639
Re: Lower rad hose? Entropy rad and truck water pump

Quote:
Originally Posted by Curtb1971 View Post
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.
__________________
1970 C-10 LWB "Blu"

Instagram (current build pictures) 70_nc_c10
NC_John is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:52 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com