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Topic: Ok, Check out my radiator pics - I think its the wrong rad.

in Forum: C3 Cooling and Heating Systems


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Re: Ok, Check out my radiator pics - I think its the wrong rad. (7/17)
 5/20/14 12:33pm
F4GaryGold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1406

According to my Rik's Corvette parts catalog, you should have an 18" wide core aluminum radiator.  That is for a manual, no a/c base 350 '72.  The automatic tranny or a/c cars had a 26" wide brass and copper core radiator.  Big blocks had a 27.5" core.  So you may have the right size radiator and it just needs to be rebuilt or replaced.

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Re: Ok, Check out my radiator pics - I think its the wrong rad. (8/17)
 5/20/14 1:32pm
HighDesertDave
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Carson City, NV - USA

Vette(s):
Numbers matching 1972 350 4 speed, silver pewter body with blue interior


Joined: 12/4/2013
Posts: 239

Hey Gary, does it list the height of the rad in your catalog? The one in my car is short for sure at 15". None of the top sealing parts come close to to the top of the core. It appears to be like an inch short. If you look at my left side pic you can see how big the gap is under the baffle bolted to the core support. Also, I've noticed that the aluminum OE rads have minimal tanks on the ends...they do not protrude like the brass ones. That would make sens with the vertical foam end seals. Does your catalog show straight or curved top inlet pipe?
As far as flushing, the PO had been restoring this car for many years. When I bought it the engine had been rebuilt and recently installed with all these new parts including the rad, clutch fan etc. He told me when he was sorting out the over heating they had replaced the old clutch fan and installed the new Delco unit at a shop which had tested it. They said it improved the running temp. I dunno...but from the clutch fans I've replaced, they typically spin very free when cool if they are bad, or leak oil or make a ton of noise. This seems proper. Plus I've added the electric fan to the front. I think part of its overheating issue is a lack of proper sealing to the core support and shroud, but since it appears too small you cannot get it to seal using the stock sheet metal parts and foam.

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My Christmas present to ME! Bought Sat 11-30-2013. 72, 350 4 spd, Silver with blue interior...Can't you just hear Pablo Cruz playing in the background?

Re: Ok, Check out my radiator pics - I think its the wrong rad. (9/17)
 5/20/14 2:31pm
F4GaryGold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1406

Re: Ok, Check out my radiator pics - I think its the wrong rad. (10/17)
 5/20/14 4:50pm
HighDesertDave
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Carson City, NV - USA

Vette(s):
Numbers matching 1972 350 4 speed, silver pewter body with blue interior


Joined: 12/4/2013
Posts: 239

Thanks Gary, great info! 

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My Christmas present to ME! Bought Sat 11-30-2013. 72, 350 4 spd, Silver with blue interior...Can't you just hear Pablo Cruz playing in the background?

Re: Ok, Check out my radiator pics - I think its the wrong rad. (11/17)
 5/20/14 6:37pm
F4GaryGold Member
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Grapevine, TX - USA

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1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1406

Hey Dave, I used to fly a Cessna Citation out of Carson City back in 82.  My parent's and grandparent's old stomping grounds were the Portola/Grey Eagle area.  I know the area well, we got married on the shore of Lake Tahoe.  That park area just north of the tunnel/cave (I forget what it's called).

|UPDATED|5/20/2014 3:37:09 PM (AZT)|/UPDATED|


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Re: Ok, Check out my radiator pics - I think its the wrong rad. (12/17)
 5/21/14 1:44am
HighDesertDave
Former Member

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Carson City, NV - USA

Vette(s):
Numbers matching 1972 350 4 speed, silver pewter body with blue interior


Joined: 12/4/2013
Posts: 239

Cave Rock? There is a small turn out with a nice view not far from the tunnel. I used to see wedding parties out there often in the summer. I commuted from Carson to Heavenly ski resort for 10 years. Ya we have a nice little airport here. Quite a few antiquers and war birds. Weaver bros. restore ex military albatross's out there still. Many of the Reno air race T-6's live out there. My office is about 2 minutes from the airport. I still run outside like a kid when I hear a built radial pulling into the thin air. You never know when a sea furry with a hidden corn cob's gonna take a test run.
I proposed to my wife on the north fork of the yuba. 14 years ago. We canoe up in gold lakes basin and sometimes stay in the grey eagle area. I'm a big fan of Plumas Eureka state park and the iron door there in Johnsville. Spendy but tasty. That area is one of the local hidden gems up this way.

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My Christmas present to ME! Bought Sat 11-30-2013. 72, 350 4 spd, Silver with blue interior...Can't you just hear Pablo Cruz playing in the background?

Re: Ok, Check out my radiator pics - I think its the wrong rad. (13/17)
 5/21/14 12:14pm
F4GaryGold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1406

I've been to all those places!  And I crewed T6's for 17 years from '81 to '97 at the air races.

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Re: Ok, Check out my radiator pics - I think its the wrong rad. (14/17)
 5/21/14 6:36pm
HighDesertDave
Former Member

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Carson City, NV - USA

Vette(s):
Numbers matching 1972 350 4 speed, silver pewter body with blue interior


Joined: 12/4/2013
Posts: 239

I love the air races. Talk about gettin your patrotic on. Kinda teatering on the edge of failure right now. Last year had a low turn out even though the weather was perfect. I think people are scared. Not me. I could die on the way to work...screw it. I'm there. We need an F4j to show up sometime. I never see F4's. Hey whatever happened to Dago Red? I've tried to search her out but cannot find any info on her. I think I saw her fly twice, always in the gold and now poof, vanished. Hey check this out, my gramps (living) test flew the 3rd ever commissioned P-80. He was stationed at Muroc after WWII (B-17 pilot). He was one the staff report writers for all the early jet testing post war. Flew some modified F4u's down there too. Said the were the fastest prop jobs he ever piloted. When I can get him talking there is a ton of history waiting to unfold.

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My Christmas present to ME! Bought Sat 11-30-2013. 72, 350 4 spd, Silver with blue interior...Can't you just hear Pablo Cruz playing in the background?

Re: Ok, Check out my radiator pics - I think its the wrong rad. (15/17)
 5/22/14 1:02pm
F4GaryGold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1406

Dave, I found this on Dago Red:

http://www.mustangsmustangs.net/p-51/?news/112233931/dagored_021111


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Re: Ok, Check out my radiator pics - I think its the wrong rad. (16/17)
 5/22/14 1:06pm
Adams' AppleLifetime Member
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Duncanville, TX - USA

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#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


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Re: Ok, Check out my radiator pics - I think its the wrong rad. (17/17)
 5/22/14 1:54pm
F4GaryGold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1406

...and just as interesting.  Wink

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