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12-11-2024, 03:56 PM
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#1 |
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Registered User
Join Date: Mar 2018
Location: Barrington nh
Posts: 114
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Upper Radiator hose with ls1 water pump
Plan to run a ls1 water pump (front vs top hose inlet) and was wondering what upper rad hose options I have.
The radiator has passenger side Upper/Lower inlets. The Truck is a '74 I have seen plent of options for a truck style water pump but can't use those. Even seen a few LS3 engine references but no radiator hose options. Don't mind reducers or splicing if I have too, just want a few options to start with versus standing in front of 500 hanging hoses at Napa.... |
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12-11-2024, 05:12 PM
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#2 |
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Registered User
Join Date: Jun 2015
Location: Carlos MN
Posts: 2,132
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Re: Upper Radiator hose with ls1 water pump
On my LS projects I make a wire pattern and head on down to Oreillys and they let me poke around the store room and find a hose that is close. Typically I have to do a bit of trimming to get to work. I'm using 2002 Camaro water pumps. I wouldn't do a spliced hose. Just one more place to leak. Pic of my 68 C10.
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12-13-2024, 11:08 AM
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#3 |
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Registered User
Join Date: Mar 2018
Location: Barrington nh
Posts: 114
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Re: Upper Radiator hose with ls1 water pump
Yeah, was hoping to avoid that but it looks like that is whats gonna happen. It's not a very complicated bend patterns so hopefully it's easy to find something.
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12-18-2024, 12:44 PM
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#4 |
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Registered User
Join Date: Mar 2020
Location: The Woodlands,Tx
Posts: 588
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Re: Upper Radiator hose with ls1 water pump
I used a Gates #22436 hose and a 90-degree elbow off another random hose with a splice it has been working for 5 years with no issues. My LS is out of a 2002 Firebird. I assume the same water pump as you describe
Sorry didn't see you have a pass side rad. Maybe this will help someone else down the road. |
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12-22-2024, 03:21 PM
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#5 |
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Registered User
Join Date: Mar 2018
Location: Barrington nh
Posts: 114
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Re: Upper Radiator hose with ls1 water pump
Ever try these at the splice?
Cleans it up a bunch https://www.summitracing.com/search/...di4yqviyv5xfbp Gates makes them too. |
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12-22-2024, 05:16 PM
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#6 |
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Registered User
Join Date: Jun 2015
Location: Carlos MN
Posts: 2,132
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Re: Upper Radiator hose with ls1 water pump
On my 73 Camaro LS3 project I used a splice in the upper rad hose. I also welded a NPT "bung" into the bottom of the slice for the coolant cross over line. I used exhaust tubing that I welded a bead on both ends so the hose couldn't slip off. Never had an issue. Aftermarket splices with a bung are also available.
Pic. |
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Yesterday, 07:31 PM
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#7 |
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Registered User
Join Date: Mar 2022
Location: Surrey BC
Posts: 916
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Re: Upper Radiator hose with ls1 water pump
used these a couple times in swaps, never leaked. If you are worried double clamp it, like the standard has become on boats where a leak can sink you.
with steam vent https://www.amazon.ca/gp/product/B0BKRS2GPN/ without https://www.amazon.ca/gp/product/B09FJKPZ4X |
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