Lower radiator hose - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72GMC51 · 02-24-2005, 12:37 PM

Any one have the GM Performance parts serpintine system (or any stock GM serp system) if you do what lower Rad hose do you run, the stock one just won't make the curve and I tring to stay away from a flex hose. My truck is a 1972 GMC 1/2t 2wd 350 Auto a/c
Thanks

Fred T · 02-24-2005, 01:25 PM

I assume you're running the long pump. I don't have the serp, but was able to make a Dayco 70664 work with the long pump.
http://207.44.196.117/vboard/showthread.php3?t=138379

72GMC51 · 02-24-2005, 02:39 PM

The problem is the alum bracket for the a/c pump and air pump, cant make the corner around it and the frame, it is alot lower.

67chevemall · 02-24-2005, 03:52 PM

Is the belt rubbing on the hose in that pic above?
Maybe you'll have to make a steel extension or such?

72GMC51 · 02-24-2005, 09:35 PM

No the belt doesn't rub there is plenty of room between the belt and hose its the bend thats the problem. I guess probably have a solid pipe made and use straight rad hoses to connect, unless someone else has any other ideas.

**smitty62** · 02-24-2005, 11:13 PM

72--I can't help you with the hose, but I have a question? I'm considering a serpentine setup and I'm wondering if your setup came with that idler in place of the air pump? Or is that something you made yourself? Thanks!

BobM · 02-24-2005, 11:36 PM

Had the same problem with my 71, but don't have the serpentine belt. If I remember correctly, think I used a hose made for the 72 Blazer which has the long pump. It has a sharp bend up at the water pump end. Fits perfectly on my truck. May be able to find the part number if you need it.

72GMC51 · 02-25-2005, 12:55 AM

Quote:

Originally Posted by smitty62

72--I can't help you with the hose, but I have a question? I'm considering a serpentine setup and I'm wondering if your setup came with that idler in place of the air pump? Or is that something you made yourself? Thanks!

It came with the idler pulley for the air pump. I bought the whole setup from Sallee Chevrolet at Salle-chevrolet.com, summit also sells it or you can buy it from many Local Chevrolet dealers. It comes with new GM water & power steering pumps, Alternator with plug, all pulleys, belt, all the brackets, bolts and instructions for $550.00 or $750.00 with a/c compressor.

smbrouss70 · 02-25-2005, 02:09 AM

I wish I could help with the hose issue, but if you do find a hose that fits please post the part # or application of the hose because I was considering this very same setup.

Also, I noticed that you have a sanden A/C compressor mounted in place of the radial unit thats supposed to go there, what did you do to make it fit?

72GMC51 · 02-25-2005, 11:20 AM

Quote:

Originally Posted by smbrouss70

I wish I could help with the hose issue, but if you do find a hose that fits please post the part # or application of the hose because I was considering this very same setup.

Also, I noticed that you have a sanden A/C compressor mounted in place of the radial unit thats supposed to go there, what did you do to make it fit?

The Adapter kit came from Old Air Products out of Texas, I used GM belt # 14097664, Goodyear # 6PK2520. I used their a/c system one thing though is the hoses do not come with both hose ends connected you have to measure them and either send them back to be made or bring them to your local a/c shop to have them crimped, which I guess is good if you want to run your line differant than factory. Vintage Air out of Florida crimp their hoses at a pre determined length in the complete kit they sell.

smbrouss70 · 02-25-2005, 01:14 PM

Thanks, I already have a Vintage Air system installed on my truck with a V-belt bracket. I wanted to put the serpentine system on there but I was thinking that I would have to use the radial compressor with the hose adapter kit to make it work.

I hope you figure out the hose thing, it looks like you're coming together there.

72GMC51 · 02-27-2005, 11:26 PM

Quote:

Originally Posted by BobM

Had the same problem with my 71, but don't have the serpentine belt. If I remember correctly, think I used a hose made for the 72 Blazer which has the long pump. It has a sharp bend up at the water pump end. Fits perfectly on my truck. May be able to find the part number if you need it.

If you have the # of that hose it would be great, also a picture if possible.
Thanks
JC

72GMC51 · 03-02-2005, 12:24 AM

Finally have the solution I hope, had a piece of pipe bent and used parts of a stock replacement hose. Will have it made in Stainless tomorrow with a mandrel pipe bender, and hope for the best.

67chevemall · 03-03-2005, 09:56 PM

Nice Job!

68w/sbc406 · 03-03-2005, 10:34 PM

nice valve covers

02-24-2005, 12:37 PM	#1
72GMC51 72GMC51 Join Date: Jul 2004 Location: Minnesota Posts: 233	Lower radiator hose Any one have the GM Performance parts serpintine system (or any stock GM serp system) if you do what lower Rad hose do you run, the stock one just won't make the curve and I tring to stay away from a flex hose. My truck is a 1972 GMC 1/2t 2wd 350 Auto a/c Thanks Attached Images __________________ 72 GMC 2wd 1/2 long 350 700r4 A/C PS PB 4:10. Are they ever really finished Last edited by 72GMC51; 02-24-2005 at 12:41 PM.

02-24-2005, 01:25 PM	#2
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	I assume you're running the long pump. I don't have the serp, but was able to make a Dayco 70664 work with the long pump. http://207.44.196.117/vboard/showthread.php3?t=138379 __________________ Fred There is no such thing as too much cam...just not enough engine.

02-24-2005, 02:39 PM	#3
72GMC51 72GMC51 Join Date: Jul 2004 Location: Minnesota Posts: 233	The problem is the alum bracket for the a/c pump and air pump, cant make the corner around it and the frame, it is alot lower. Attached Images __________________ 72 GMC 2wd 1/2 long 350 700r4 A/C PS PB 4:10. Are they ever really finished

02-24-2005, 03:52 PM	#4
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Is the belt rubbing on the hose in that pic above? Maybe you'll have to make a steel extension or such? __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD

02-24-2005, 09:35 PM	#5
72GMC51 72GMC51 Join Date: Jul 2004 Location: Minnesota Posts: 233	No the belt doesn't rub there is plenty of room between the belt and hose its the bend thats the problem. I guess probably have a solid pipe made and use straight rad hoses to connect, unless someone else has any other ideas. __________________ 72 GMC 2wd 1/2 long 350 700r4 A/C PS PB 4:10. Are they ever really finished

02-24-2005, 11:13 PM	#6
smitty62 Registered User Join Date: May 2002 Location: North Carolina Posts: 1,234	72--I can't help you with the hose, but I have a question? I'm considering a serpentine setup and I'm wondering if your setup came with that idler in place of the air pump? Or is that something you made yourself? Thanks! __________________ Stepsides look like real trucks! Smitty

02-24-2005, 11:36 PM	#7
BobM Registered User Join Date: Feb 2001 Location: Winnipeg, MB, Canada Posts: 73	Had the same problem with my 71, but don't have the serpentine belt. If I remember correctly, think I used a hose made for the 72 Blazer which has the long pump. It has a sharp bend up at the water pump end. Fits perfectly on my truck. May be able to find the part number if you need it.

02-25-2005, 02:09 AM	#9
smbrouss70 Registered User Join Date: Sep 2003 Location: Rayne, LA Posts: 2,782	I wish I could help with the hose issue, but if you do find a hose that fits please post the part # or application of the hose because I was considering this very same setup. Also, I noticed that you have a sanden A/C compressor mounted in place of the radial unit thats supposed to go there, what did you do to make it fit? __________________ Steven "If dogs don't go to heaven, when I die I want to go wherever they went." -- Will Rogers R.I.P. Oscar R.I.P. Ratchet 1967 Pontiac GTO - Dad was the Original Owner 1970 Chevy 2wd SWB "Oscar's Truck" 1970 Chevy 2wd Blazer "Ratchet's Blazer" 2013 Chevy 2500HD Crew Cab Duramax/Allison Z71 LTZ "Brown Sugar" 2017 Chevy Suburban "BDB" 2020 Chevy Blazer Premier "Foxy" Member of Louisiana Classic Truck Club (LCTC) Shop Build

02-25-2005, 01:14 PM	#11
smbrouss70 Registered User Join Date: Sep 2003 Location: Rayne, LA Posts: 2,782	Thanks, I already have a Vintage Air system installed on my truck with a V-belt bracket. I wanted to put the serpentine system on there but I was thinking that I would have to use the radial compressor with the hose adapter kit to make it work. I hope you figure out the hose thing, it looks like you're coming together there. __________________ Steven "If dogs don't go to heaven, when I die I want to go wherever they went." -- Will Rogers R.I.P. Oscar R.I.P. Ratchet 1967 Pontiac GTO - Dad was the Original Owner 1970 Chevy 2wd SWB "Oscar's Truck" 1970 Chevy 2wd Blazer "Ratchet's Blazer" 2013 Chevy 2500HD Crew Cab Duramax/Allison Z71 LTZ "Brown Sugar" 2017 Chevy Suburban "BDB" 2020 Chevy Blazer Premier "Foxy" Member of Louisiana Classic Truck Club (LCTC) Shop Build

03-02-2005, 12:24 AM	#13
72GMC51 72GMC51 Join Date: Jul 2004 Location: Minnesota Posts: 233	Finally have the solution I hope, had a piece of pipe bent and used parts of a stock replacement hose. Will have it made in Stainless tomorrow with a mandrel pipe bender, and hope for the best. Attached Images __________________ 72 GMC 2wd 1/2 long 350 700r4 A/C PS PB 4:10. Are they ever really finished

03-03-2005, 09:56 PM	#14
67chevemall Registered User Join Date: Apr 2003 Location: NB Posts: 3,367	Nice Job! __________________ 1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD

03-03-2005, 10:34 PM	#15
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	nice valve covers Attached Images __________________ 1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.