Original radiator for '72 402/400 Cheyenne - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Chevy454** · 08-22-2007, 05:44 PM

Anyone have some pictures, and/or description, of an original radiator for a '72 bbc/auto truck? I *thought* I had what was the original in my '72, but the radiator shop disagrees...would the original tank on the passenger side have a funky heater hose (3/4") inlet that was plummed to the water pump or intake?

sameyrasmea72 · 08-22-2007, 06:21 PM

Quote:

Originally Posted by Chevy454

..would the original tank on the passenger side have a funky heater hose (3/4") inlet that was plummed to the water pump or intake?

I don't think so!, but I am not for sure.

This pic may not help but it is the only one I can find. all original BB/ 4 core radiators that I have seen have had the rectanle/square on the top of them.

**72 Super** · 08-22-2007, 06:36 PM

the original harrison radiator from our truck does have a 3/4 inlet in the pass side tank.When I put an aftermarket in my truck a few years back I had the radiator shop put the inlet in the new one as well.

Ray

**72 Super** · 08-22-2007, 07:10 PM

here are a few pictures of the original four core radiator from my 72.It has a 350 w/AC.

**jamie72** · 08-22-2007, 07:55 PM

mine came with a bb 402 and it looks just like 72 super`s.

dwaite72lnghrn · 08-23-2007, 06:28 AM

The intake outlet went to the heater valve on the inner fender, To the heater core, Out of the heater core to the radiator. Factory BBC/air/auto setup.

**special-K** · 08-23-2007, 08:54 AM

Big blocks had the big radiator,same as HD on small block and you got your answer on the heater neck.

*Ozona* · 08-23-2007, 08:55 AM

For a big block the heater hose nipple on the radiator can't be used on an AC truck with an A6 compressor...which is stock. It will interfere with the clutch/pulley on the a6 air conditioning compressor. The AC Compressor brackets have a small metal bracket on the front to retain the heater hose that goes...to the water pump.

So guess what that means.. NO AC..the hose could have gone to the radiator.

Not much help..but some info to have.

cruiserman · 08-23-2007, 11:39 AM

Quote:

Originally Posted by Chevy454

Anyone have some pictures, and/or description, of an original radiator for a '72 bbc/auto truck? I *thought* I had what was the original in my '72, but the radiator shop disagrees...would the original tank on the passenger side have a funky heater hose (3/4") inlet that was plummed to the water pump or intake?

Yep, mine does.

**DANTIP** · 10-15-2009, 12:02 PM

I believe 350 and 402 with A/T and A/C would have had the upper heater hose connected to the 3/4 fitting on the radiator. Manual transmission vehicles would have the upper heater hose connected to the water pump. All lower heater hoses goes through the cable-operated valve to a fitting on the intake manifold.

Longhorn Man · 10-15-2009, 01:29 PM

there shouldn't be a cable-operated valve in there... there's one controlled by vacuum mounted on the fenderwell though.

68 50th · 10-15-2009, 04:33 PM

Here's a couple pics that might help.

**Joesjunk** · 10-15-2009, 07:14 PM

My 72 402 truck has the heater hose going to the radiator. It also has A/C. It has 60K original miles on it and still has the original hoses on it. I have a pic, but I dont see where you add pictures any more??

68 50th · 10-16-2009, 12:33 AM

Quote:

Originally Posted by Joesjunk

I have a pic, but I dont see where you add pictures any more??

Here's why and how to do it:

http://67-72chevytrucks.com/vboard/s...d.php?t=366858

**Joesjunk** · 10-16-2009, 10:38 AM

Thanks, I did not see that

08-22-2007, 05:44 PM	#1
Chevy454 Registered User Join Date: Dec 1999 Location: Alton, MO Posts: 145	Original radiator for '72 402/400 Cheyenne Anyone have some pictures, and/or description, of an original radiator for a '72 bbc/auto truck? I thought I had what was the original in my '72, but the radiator shop disagrees...would the original tank on the passenger side have a funky heater hose (3/4") inlet that was plummed to the water pump or intake? __________________ '72 Super Custom Suburban - 402/400, original bucket seats, 3rd seat, rear air, tilt A few Yenko cars Interested in COPOs, Yenkos or other dealer built muscle cars then go here:www.yenko.net

08-22-2007, 06:36 PM	#3
72 Super Senior Member Join Date: Jul 2001 Location: Hyattsville, Maryland Posts: 3,685	Re: Original radiator for '72 402/400 Cheyenne the original harrison radiator from our truck does have a 3/4 inlet in the pass side tank.When I put an aftermarket in my truck a few years back I had the radiator shop put the inlet in the new one as well. Ray __________________ 72 Cheyenne Super (Purchased new by my parents in August of 71) Black and White

08-22-2007, 07:10 PM	#4
72 Super Senior Member Join Date: Jul 2001 Location: Hyattsville, Maryland Posts: 3,685	Re: Original radiator for '72 402/400 Cheyenne here are a few pictures of the original four core radiator from my 72.It has a 350 w/AC. Attached Images __________________ 72 Cheyenne Super (Purchased new by my parents in August of 71) Black and White Last edited by 72 Super; 08-22-2007 at 07:12 PM.

08-22-2007, 07:55 PM	#5
jamie72 Senior Member Join Date: Apr 2000 Location: madison indiana Posts: 3,836	Re: Original radiator for '72 402/400 Cheyenne mine came with a bb 402 and it looks just like 72 super`s. __________________ jamie72 72 BB cheyenne -- Restoration getting started.. member #807 http://www.myspace.com/whitetailobsession www.antlertalk.com

08-23-2007, 06:28 AM	#6
dwaite72lnghrn Registered User Join Date: Jun 2002 Location: central pa Posts: 1,525	Re: Original radiator for '72 402/400 Cheyenne The intake outlet went to the heater valve on the inner fender, To the heater core, Out of the heater core to the radiator. Factory BBC/air/auto setup. __________________ 72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne

08-23-2007, 08:54 AM	#7
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Original radiator for '72 402/400 Cheyenne Big blocks had the big radiator,same as HD on small block and you got your answer on the heater neck. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

08-23-2007, 08:55 AM	#8
Ozona Account Suspended Join Date: Jan 2006 Location: Fort Worth Posts: 155	Re: Original radiator for '72 402/400 Cheyenne For a big block the heater hose nipple on the radiator can't be used on an AC truck with an A6 compressor...which is stock. It will interfere with the clutch/pulley on the a6 air conditioning compressor. The AC Compressor brackets have a small metal bracket on the front to retain the heater hose that goes...to the water pump. So guess what that means.. NO AC..the hose could have gone to the radiator. Not much help..but some info to have.

10-15-2009, 12:02 PM	#10
DANTIP Registered User Join Date: Sep 2001 Location: Fort Wayne, Indiana, USA Posts: 1,888	Re: Original radiator for '72 402/400 Cheyenne I believe 350 and 402 with A/T and A/C would have had the upper heater hose connected to the 3/4 fitting on the radiator. Manual transmission vehicles would have the upper heater hose connected to the water pump. All lower heater hoses goes through the cable-operated valve to a fitting on the intake manifold.

10-15-2009, 01:29 PM	#11
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: Original radiator for '72 402/400 Cheyenne there shouldn't be a cable-operated valve in there... there's one controlled by vacuum mounted on the fenderwell though.

10-15-2009, 04:33 PM	#12
68 50th Senior Member Join Date: Jul 2004 Location: Sweden Posts: 833	Re: Original radiator for '72 402/400 Cheyenne Here's a couple pics that might help. __________________ Mats.. ---------------------------------------------------- 1971 Cheyenne Super Custom Camper 475CBB/TH400/AC 1992 Silverado Sport Truck 1988 Silverado 2500 Ext Longbed 4x4 2001 GMC Sierra SLT 4x4 1990 Chevrolet K3500 1965 Pontiac Grand Prix 1980 Z 28 350/4-speed/AC/T-top 1980 Camaro Coupe V6/3-speed 1979 Buick Century Wagon

10-15-2009, 07:14 PM	#13
Joesjunk Senior Member Join Date: May 2001 Location: Independence MO. Posts: 7,705	Re: Original radiator for '72 402/400 Cheyenne My 72 402 truck has the heater hose going to the radiator. It also has A/C. It has 60K original miles on it and still has the original hoses on it. I have a pic, but I dont see where you add pictures any more?? __________________ 72 3/4t Custom Deluxe 402/auto 66k Original paint 71 3/4t 4x4 Custom Deluxe 10k original miles Original paint 71 3/4t Cheyenne 402 70k original paint 72 3/4t 4x4 Custom deluxe 72 3/4t 4x4 Custom deluxe 91k original paint 72 Cheyenne/30 Dually 69 Camaro SS396 4-speed 13 GMC 2500HD Duramax I bought new 05 Jeep Wrangler "Willys Edition" 12k miles (I bought new) 85 3/4 ton 4x4 Scottsdale 33k miles original paint 86 1 ton 4x4 SRW Silverado 454 restored 80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint 95 GMC 1 ton dually 4x4 my dad bought new 95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles 2002 2500HD 4x4 regular cab 6.0L 67k miles 2002 2500HD 4x4 regular cab 8.1L 28k miles 2003 GMC 2500HD 4x4 regular cab Diesel 93k miles 67-72 Parts for sale

10-16-2009, 10:38 AM	#15
Joesjunk Senior Member Join Date: May 2001 Location: Independence MO. Posts: 7,705	Re: Original radiator for '72 402/400 Cheyenne Thanks, I did not see that __________________ 72 3/4t Custom Deluxe 402/auto 66k Original paint 71 3/4t 4x4 Custom Deluxe 10k original miles Original paint 71 3/4t Cheyenne 402 70k original paint 72 3/4t 4x4 Custom deluxe 72 3/4t 4x4 Custom deluxe 91k original paint 72 Cheyenne/30 Dually 69 Camaro SS396 4-speed 13 GMC 2500HD Duramax I bought new 05 Jeep Wrangler "Willys Edition" 12k miles (I bought new) 85 3/4 ton 4x4 Scottsdale 33k miles original paint 86 1 ton 4x4 SRW Silverado 454 restored 80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint 95 GMC 1 ton dually 4x4 my dad bought new 95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles 2002 2500HD 4x4 regular cab 6.0L 67k miles 2002 2500HD 4x4 regular cab 8.1L 28k miles 2003 GMC 2500HD 4x4 regular cab Diesel 93k miles 67-72 Parts for sale

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