Rad Hoses Won't Fit Rad! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Legolas894 · 04-17-2010, 03:51 PM

OK-I admit it, I'm trying to save money.

I've got a '67 with a 283. Needs a new rad. Water pump looks almost original.

I picked up a rad for a 1990 Suburban with a SBC 350 (only $20). Had to block off the trans cooler fittings (don't have auto), and plug the heater return line on the rad (no big deal). Drained the coolant, Got everything in, everything lines up with the rad brackets and

.... my hoses are wayyyy tooooo big. The lower rad hose on my 283 is almost 2" and the upper is like 1 3/4. The Suburban rad has 1 1/4" upper and 1 5/8" for the lower.

My question is, should I get a new water pump and if I do, will it fit the newer rad hoses or should I just shell out the $200 for a new rad that fits the truck! I don't like the idea of buying adapters for the rad hoses unless that's an ok option.

Thanks

Legolas894 · 04-17-2010, 05:29 PM

Bump

cdowns · 04-17-2010, 05:41 PM

you could look into seeing how much a radiator shop would charge to install bigger outlets

Legolas894 · 04-17-2010, 06:47 PM

Quote:

Originally Posted by cdowns

you could look into seeing how much a radiator shop would charge to install bigger outlets

That's an idea. Thanks

Leviticus · 04-17-2010, 08:02 PM

I ran into this problem when installing my serpentine setup as far as different hose bends and different diameter outlets. Go to your local parts store and take your hose with you, and match up one that works.

I know when I switched to a long pump water pump the hose I found that worked had a larger diameter end for the water pump, and a smaller end for the lower radiator outlet. So there are hoses out there that have diff diameters on diff ends, it just takes some trial and error.

Good luck.

Legolas894 · 04-17-2010, 09:39 PM

Thanks-I didn't know they had hoses with different diameter ends on each end. That might be the solution.

04-17-2010, 03:51 PM	#1
Legolas894 Chemist under the hood... Join Date: Apr 2009 Location: Fort Erie,ON, Canada Posts: 617	Rad Hoses Won't Fit Rad! OK-I admit it, I'm trying to save money. I've got a '67 with a 283. Needs a new rad. Water pump looks almost original. I picked up a rad for a 1990 Suburban with a SBC 350 (only $20). Had to block off the trans cooler fittings (don't have auto), and plug the heater return line on the rad (no big deal). Drained the coolant, Got everything in, everything lines up with the rad brackets and .... my hoses are wayyyy tooooo big. The lower rad hose on my 283 is almost 2" and the upper is like 1 3/4. The Suburban rad has 1 1/4" upper and 1 5/8" for the lower. My question is, should I get a new water pump and if I do, will it fit the newer rad hoses or should I just shell out the $200 for a new rad that fits the truck! I don't like the idea of buying adapters for the rad hoses unless that's an ok option. Thanks __________________ Current fleet: 2013 GMC Sierra, 5.3L, 4x4 1988 GMC Sierra, 305, Auto 1984 Jeep Grand Wagoneer, 360 V8 1997 VW Cabrio, 2.0L 2017 Toyota Rav4, 2.5L Stuff I wish I still had: 2013 Toyota Matrix [RIP] 1967 GMC 910 Fleetside, 283 V8 [1st Love-SOLD] 1987 Jeep Cherokee Laredo 4X4, 4.0 I-6 [SOLD} 1994 Chevrolet Caprice Classic, 5.7LV8 [SOLD] 1995 Chevrolet Astro AWD, 4.3L V6 (RIP) 1998 Chevrolet Suburban 4x4, 5.7L V8 [SOLD]

04-17-2010, 05:29 PM	#2
Legolas894 Chemist under the hood... Join Date: Apr 2009 Location: Fort Erie,ON, Canada Posts: 617	Re: Rad Hoses Won't Fit Rad! Bump __________________ Current fleet: 2013 GMC Sierra, 5.3L, 4x4 1988 GMC Sierra, 305, Auto 1984 Jeep Grand Wagoneer, 360 V8 1997 VW Cabrio, 2.0L 2017 Toyota Rav4, 2.5L Stuff I wish I still had: 2013 Toyota Matrix [RIP] 1967 GMC 910 Fleetside, 283 V8 [1st Love-SOLD] 1987 Jeep Cherokee Laredo 4X4, 4.0 I-6 [SOLD} 1994 Chevrolet Caprice Classic, 5.7LV8 [SOLD] 1995 Chevrolet Astro AWD, 4.3L V6 (RIP) 1998 Chevrolet Suburban 4x4, 5.7L V8 [SOLD]

04-17-2010, 05:41 PM	#3
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Rad Hoses Won't Fit Rad! you could look into seeing how much a radiator shop would charge to install bigger outlets __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

04-17-2010, 08:02 PM	#5
Leviticus Shake and Bake! Join Date: Feb 2010 Location: Central Coast, CA Posts: 609	Re: Rad Hoses Won't Fit Rad! I ran into this problem when installing my serpentine setup as far as different hose bends and different diameter outlets. Go to your local parts store and take your hose with you, and match up one that works. I know when I switched to a long pump water pump the hose I found that worked had a larger diameter end for the water pump, and a smaller end for the lower radiator outlet. So there are hoses out there that have diff diameters on diff ends, it just takes some trial and error. Good luck. __________________ "All tyranny needs to gain a foothold is for people of good conscience to remain silent." Thomas Jefferson "You are remembered for the rules you break." General Douglas MacArthur "Support Our Troops And The NRA"

04-17-2010, 09:39 PM	#6
Legolas894 Chemist under the hood... Join Date: Apr 2009 Location: Fort Erie,ON, Canada Posts: 617	Re: Rad Hoses Won't Fit Rad! Thanks-I didn't know they had hoses with different diameter ends on each end. That might be the solution. __________________ Current fleet: 2013 GMC Sierra, 5.3L, 4x4 1988 GMC Sierra, 305, Auto 1984 Jeep Grand Wagoneer, 360 V8 1997 VW Cabrio, 2.0L 2017 Toyota Rav4, 2.5L Stuff I wish I still had: 2013 Toyota Matrix [RIP] 1967 GMC 910 Fleetside, 283 V8 [1st Love-SOLD] 1987 Jeep Cherokee Laredo 4X4, 4.0 I-6 [SOLD} 1994 Chevrolet Caprice Classic, 5.7LV8 [SOLD] 1995 Chevrolet Astro AWD, 4.3L V6 (RIP) 1998 Chevrolet Suburban 4x4, 5.7L V8 [SOLD]



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