LS3 Conversion upper stock radiator Hose part? - Team Camaro Tech
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post #1 of 50 (permalink) Old Jan 4th, 17, 08:45 PM Thread Starter
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LS3 Conversion upper stock radiator Hose part?

I'm finalizing my LS3 conversion and have a stock style radiator and I am looking to see if anyone who has done this recalls the upper radiator hose that they used that goes from the LS3 motor to the driver side upper inlet. I have pieced a couple together but I'd really like to have a single hose for a cleaner look. Anyone steer me in the right direction?
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post #2 of 50 (permalink) Old Jan 5th, 17, 06:30 AM
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Re: LS3 Conversion upper stock radiator Hose part?

What do mean by stock radiator?
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post #3 of 50 (permalink) Old Jan 5th, 17, 06:55 AM Thread Starter
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Re: LS3 Conversion upper stock radiator Hose part?

as in the inlet is on the upper drivers side and the other is on the lower passenger side. (as opposed to the LS type radiator where both are on the passenger side)

Here is my current setup with a coupler between the two pieces
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post #4 of 50 (permalink) Old Jan 5th, 17, 07:14 AM
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Re: LS3 Conversion upper stock radiator Hose part?

Here are the hoses I used on my LQ9 swap for a drivers side upper water pump outlet, passenger side water pump lower inlet. Radiator has inlet/outlet on opposite sides like stock:

Upper: Gates 22373 (this is a lower hose for something like a Buick LaCrosse, but it's a great fit)
Lower: Dayco 71244 (this a lower hose for some kind of 85-95 Chevy/GMC truck)

[img][URL=http://s228.photobucket.com/user/modi_photos/media/IMG_4053x_zps1fabrxzk.jpg.html]


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post #5 of 50 (permalink) Old Jan 5th, 17, 07:14 AM
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Re: LS3 Conversion upper stock radiator Hose part?

This one might work

Radiator Coolant Hose Upper Continental Elite 61782 | eBay

Don

1969 Camaro LSA 6L90E AME subframe and IRS
1969 Camaro vert LS3 4L65E Ridetech level 2 - sold
1959 El Camino project
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post #6 of 50 (permalink) Old Jan 5th, 17, 07:23 AM
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Re: LS3 Conversion upper stock radiator Hose part?

I had a similar setup when I went from a BBC to LS3 and just decided to send the radiator to a shop and paid $75 to have them move the neck to the other side to make it fit cleaner. I also have my CAI routed to the drivers front corner so I needed the hose out of the way for the Roto-Fab box and connection to fit nicely. Just a thought.

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post #7 of 50 (permalink) Old Jan 5th, 17, 07:47 AM
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Re: LS3 Conversion upper stock radiator Hose part?

What about something like this: Flexible Radiator Hose Kit, 36 Inch

I have also seen this in Black.

1969 X66 396 LeMans Blue, M20, 373 (Sold)
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post #8 of 50 (permalink) Old Jan 5th, 17, 07:48 AM Thread Starter
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Re: LS3 Conversion upper stock radiator Hose part?

Quote:
Originally Posted by dhutton View Post

hmmm that looks like I could cut the long end and it may fit, how did you come up with this??
Are there dimensions ?
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post #9 of 50 (permalink) Old Jan 5th, 17, 08:20 AM Thread Starter
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Re: LS3 Conversion upper stock radiator Hose part?

Quote:
Originally Posted by DT View Post
What about something like this: Flexible Radiator Hose Kit, 36 Inch

I have also seen this in Black.
hmmm what is the word on the street with these? I recall a mechanic telling me that they don't like them since they are very ribbed on the inside and the flow isn't as good or something?
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post #10 of 50 (permalink) Old Jan 5th, 17, 08:40 AM
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Re: LS3 Conversion upper stock radiator Hose part?

Quote:
Originally Posted by ttwo View Post
hmmm what is the word on the street with these? I recall a mechanic telling me that they don't like them since they are very ribbed on the inside and the flow isn't as good or something?
I have seen the Black ones on High Dollar pro-touring cars. They look awesome IMHO. These are NOT the cheap rubber universal ones we used to see years ago.

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post #11 of 50 (permalink) Old Jan 5th, 17, 09:38 AM
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Re: LS3 Conversion upper stock radiator Hose part?

Quote:
Originally Posted by ttwo View Post
hmmm that looks like I could cut the long end and it may fit, how did you come up with this??
Are there dimensions ?
I used the same hose to go from the LS3 water pump to a conversion radiator. I can take a few measurements. What do you need? Center to center across the front?

Don

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1969 Camaro vert LS3 4L65E Ridetech level 2 - sold
1959 El Camino project
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post #12 of 50 (permalink) Old Jan 5th, 17, 09:42 AM Thread Starter
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Re: LS3 Conversion upper stock radiator Hose part?

Quote:
Originally Posted by dhutton View Post
I used the same hose to go from the LS3 water pump to a conversion radiator. I can take a few measurements. What do you need? Center to center across the front?

Don
OK so you used this one on your car! Is the diameter of the hose big enough? I see that it is for a 4cyl car and looks to be less than 1 1/2 in diameter ,but it still connected to the inlet ok without a reducer?
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post #13 of 50 (permalink) Old Jan 5th, 17, 09:53 AM
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Re: LS3 Conversion upper stock radiator Hose part?

Quote:
Originally Posted by ttwo View Post
OK so you used this one on your car! Is the diameter of the hose big enough? I see that it is for a 4cyl car and looks to be less than 1 1/2 in diameter ,but it still connected to the inlet ok without a reducer?
It is the correct diameter. 14.5" center to center offset.

Don

1969 Camaro LSA 6L90E AME subframe and IRS
1969 Camaro vert LS3 4L65E Ridetech level 2 - sold
1959 El Camino project
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post #14 of 50 (permalink) Old Jan 5th, 17, 10:22 AM Thread Starter
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Re: LS3 Conversion upper stock radiator Hose part?

Quote:
Originally Posted by dhutton View Post
It is the correct diameter. 14.5" center to center offset.

Don


I'll measure and see. I hope this works! thanks
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post #15 of 50 (permalink) Old Jan 5th, 17, 05:06 PM
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Re: LS3 Conversion upper stock radiator Hose part?

Quote:
Originally Posted by ttwo View Post
I'll measure and see. I hope this works! thanks
If that one doesn't work, the one I listed should.


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