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Author
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Topic: Radiator for 71 mustamg
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71Mach1
Gearhead Posts: 173
From: new jersey
Registered: Aug 99
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posted 03-11-2003 10:52 AM
   
Need a cooling upgrade for my 71.
351 Cleveland, Holley 750, Tremec TKO.
Dynoed 276hp/321 ft-lbs at the rear wheels,
guessing 330hp at the crank.
Looking to rebuilt to 500 hp at the crank
(at some point).Griffin quoted $615.83 !! (this was after
a discount from $724.50!!) for a bolt
in relpacement 2 row with 1.25 inch core. This seems way too much. I've read here
that the circle track radiator
(GRI-1-26272-X at summit) will bolt right
in to a 71? Is this true?
Is so and I wanted 1.25 inch core, then
it looks like 156272 (HP series version
of the above, 31x19, ford outlets) would
be the one. I see this one for $340-$360. Any other suggestions?
[This message has been edited by 71Mach1 (edited 03-11-2003).]
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MrXerox
Gearhead Posts: 326
From: Oklahoma City, Oklahoma
Registered: Nov 2000
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posted 03-11-2003 11:55 AM
There is a Griffin "NASCAR" series aluminum radiator that is an exact fit for your car using stock brackets and all and only runs $189.00! I have one in my 71 and it works awesome. I will get your the part number when I get home or even supply you with pictures If you like.
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cobravenom71
Gearhead Posts: 746
From: Kissimee, Fl USA
Registered: Aug 2002
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posted 03-11-2003 11:58 AM
I have a 'Modine' stock-sized replacement in my car and it is excellent. It is the heavy-duty cooling one (four-row). My engine is a mildly hopped-up 429 Cobra-Jet and with all accesories operating and the car idling, it hardly ever creeps up on me.
The trick is to make sure that your cooling system is completely leak-free, and have a good cap on it. Run a 160 or 180 thermostat. Make sure that your fan and shrould 'relationship' is optimized. The fan should be about 1/2 inch less in diameter than the opening in the shrould, and the blades should be 1/2 in and 1/2 out of the shrould opening. Use as little anti-freeze as possible in your climate, but make sure to add some water pump lube, and most importantly a bottle or two of 'Red-Line Water-Wetter' or some similsr product. I know 'Royal Purple' sells something similar.------------------
1971 'J' code 429 Mach 1
1976 'Starsky & Hutch' Torino (460)
1973 Grande
1973 Mach
1973 Convertible
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71Mach1
Gearhead Posts: 173
From: new jersey
Registered: Aug 99
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posted 03-11-2003 12:05 PM
Thanks MrXerox, the part number above came
from an earlier post by you (I think).
I would like to see the pictures!
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71Mach1
Gearhead Posts: 173
From: new jersey
Registered: Aug 99
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posted 03-11-2003 12:10 PM
I'm running an electric fan. I lost the previous
one while running at englishtown (luckily it
did not fall out of the engine compartment).
I got one of those fans that you attach through
the radiator, it's a good size (18 I think?)
but has no shroud and is not doing the job.
I have a double unit with a nice shroud, but
I'll need have brackets fabricated to install
it. I though I would upgrade the radiator as well.I have already changed the thermostat to 160.
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MrXerox
Gearhead Posts: 326
From: Oklahoma City, Oklahoma
Registered: Nov 2000
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posted 03-12-2003 01:41 AM
 
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71Mach1
Gearhead Posts: 173
From: new jersey
Registered: Aug 99
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posted 04-22-2003 03:13 PM
Got the griffin 2 row, 1.25 inch tubes.
I notice the outlet comes out of the
radiator at an angle, the one on the original
radiator comes out straight. Any mods needed?
Will the stock bottom hose fit?
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73STANG
Journeyman Posts: 57
From: Lincoln, NE
Registered: Apr 2000
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posted 04-22-2003 03:25 PM
I run a universal 31"x19" Ron Davis circle track aluminum radiator. It fits with the factory mounts in my 73 Mach. I got it for $209 at Speedway here in Lincoln.
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MrXerox
Gearhead Posts: 326
From: Oklahoma City, Oklahoma
Registered: Nov 2000
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posted 04-22-2003 07:33 PM
Nope, stock hoses work fine.
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71Mach1
Gearhead Posts: 173
From: new jersey
Registered: Aug 99
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posted 05-07-2003 04:10 PM
Picked up the car this morning after getting
the new radiator and electric fan installed.
(I know, I'm a wuss when it comes to working
on the car, don't have the tools or the space).
Seems to be doing the trick, but either there
is something wrong with the fans or the
thermostat is more sensitive that the old one.
With the car idleing in my driveway, the fans
kept going off and on and even seem to run at
different speeds. The engine temp was up over
halfway (idiot gauges on a '71, anyone know
what temps the left and right ends of the
"normal" range are on that gauge are?) but
seems to be stable. The fans are a dual unit
from "be cool" and the new control has 160 as
the lowest setting. The old thermostat I
could set to come on when the car was
cold (may not have been intended for use
with an electric fan in a car).
More test driving when it gets warm will tell.
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Hemikiller
Gearhead Posts: 384
From: Clinton, CT
Registered: Feb 2002
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posted 05-08-2003 12:42 PM
Randy, that adjustable controller was a Flex-a-lite part, the fan was from a late 80's GM FWD mid size car with a V-6 engine. Sorry to hear it dropped of the radiator at the track. Car looks great, I love the yellow....
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