Backwards upper rad hose outlet? Pointing other way? Swivel? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

davepl · 05-13-2018, 11:48 AM

I'm considering a Ron David triple-pass radiator. They say the triple pass (where it makes 3 crossings across the radiator instead of 1) boosts cooling capacity by about 25% in the same package size.

The downside is it moves one of the hose outlets - they wind up on the same side. Since the water pump comes out the passenger side bottom, that means the top has to come out the passenger side top, which is backwards from stock.

Does anyone make a thermostat housing that is basically pointed the mirror image of the factory one?

I could likely get a swivel but I'm afraid it'll leak and look too out of place.

**HO455** · 05-13-2018, 01:14 PM

I don't know of a passenger side outlet but a forward facing outlet is not a problem then it would be a matter of finding a hose off like a ford 460, 302, AMC 360, or a BB dodge that feeds to the passenger side. Time to buy a pizza for your favorite auto parts store.

Mike C · 05-13-2018, 01:36 PM

A single pass or regular style radiator has the inlet/outlet on opposite sides. A double pass puts them on opposite sides since it turns and goes back where it came from, right? Seems a triple pass would have the same inlet/outlet orientation as a single pass. What am I missing?

**HO455** · 05-13-2018, 01:53 PM

Good catch! I believe you are correct.

https://www.speedwaymotors.com/the-t...fference/28862

100%Chevy · 05-13-2018, 07:50 PM

My 65 Caprice uses a right side upper hose outlet.
Big block or small block uses the same part.
Try to find one and it will work.
You can probably use the same upper hose too!
If you can find it in iron-Much better!
Mike.

davepl · 05-14-2018, 10:05 AM

Quote:

Originally Posted by Mike C

A single pass or regular style radiator has the inlet/outlet on opposite sides. A double pass puts them on opposite sides since it turns and goes back where it came from, right? Seems a triple pass would have the same inlet/outlet orientation as a single pass. What am I missing?

I wondered that myself. Once across should put them opposite. Twice across should put them on the same side. Thrice should put them opposite again.

I don't know where triple pass came from, but you've convinced me. I'm calling it a two pass or double pass from now on!

05-13-2018, 11:48 AM	#1
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	Backwards upper rad hose outlet? Pointing other way? Swivel? I'm considering a Ron David triple-pass radiator. They say the triple pass (where it makes 3 crossings across the radiator instead of 1) boosts cooling capacity by about 25% in the same package size. The downside is it moves one of the hose outlets - they wind up on the same side. Since the water pump comes out the passenger side bottom, that means the top has to come out the passenger side top, which is backwards from stock. Does anyone make a thermostat housing that is basically pointed the mirror image of the factory one? I could likely get a swivel but I'm afraid it'll leak and look too out of place. __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

05-13-2018, 01:14 PM	#2
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 10,783	Re: Backwards upper rad hose outlet? Pointing other way? Swivel? I don't know of a passenger side outlet but a forward facing outlet is not a problem then it would be a matter of finding a hose off like a ford 460, 302, AMC 360, or a BB dodge that feeds to the passenger side. Time to buy a pizza for your favorite auto parts store. Attached Images __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F2 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 Last edited by HO455; 05-13-2018 at 01:22 PM.

05-13-2018, 01:36 PM	#3
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,709	Re: Backwards upper rad hose outlet? Pointing other way? Swivel? A single pass or regular style radiator has the inlet/outlet on opposite sides. A double pass puts them on opposite sides since it turns and goes back where it came from, right? Seems a triple pass would have the same inlet/outlet orientation as a single pass. What am I missing? __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

05-13-2018, 01:53 PM	#4
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 10,783	Re: Backwards upper rad hose outlet? Pointing other way? Swivel? Good catch! I believe you are correct. https://www.speedwaymotors.com/the-t...fference/28862 __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F2 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 Last edited by HO455; 05-13-2018 at 01:54 PM. Reason: Forgot link

05-13-2018, 07:50 PM	#5
100%Chevy Registered User Join Date: Jun 2008 Location: Moss Point,Ms. Posts: 1,439	Re: Backwards upper rad hose outlet? Pointing other way? Swivel? My 65 Caprice uses a right side upper hose outlet. Big block or small block uses the same part. Try to find one and it will work. You can probably use the same upper hose too! If you can find it in iron-Much better! Mike. Last edited by 100%Chevy; 05-14-2018 at 07:57 PM.

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