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Topic: Radiator draincock on my 73' ?

in Forum: C3 Cooling and Heating Systems


Radiator draincock on my 73' ?

Posted: 11/9/03 8:54pm Message 1 of 8
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San Antonio, TX - USA
Joined: 9/8/2003
Posts: 117
Vette(s): 1973 Corvette Roadster Elkhart Green, 300hp 4-spd // 2003 Millinium Yellow Coupe
I can't find it !! Has any one seen a radiator without one?

Is there another way way to drain it without yanking the lower hose?

Rick


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Radiator draincock on my 73' ?

Posted: 11/10/03 6:45am Message 2 of 8
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Frederick, MD - USA
Joined: 9/8/2003
Posts: 3398
Vette(s): 1969 convertible L71 427/435 4-speed black interior
If it's like my '78, it's not a petcock like you're used to seeing. It's a bolt threaded in at the lower right corner of the radiator tank.


Radiator draincock on my 73' ?

Posted: 11/10/03 9:12am Message 3 of 8
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Fountain Valley, CA - USA
Joined: 9/11/2003
Posts: 407
Vette(s): 1969 Daytona Yellow Coupe - ZZ4/4 speed, Hurst shifter, Griffin aluminum radiator w/ Dual Spals, March Serpentine Pulley kit, Hookers with STS Racing Baffles, VB&P Suspension bits, 17" AR Hopsters, L-88 Hood
The radiatior in my '70 is like Gunslinger's '78...threaded bolt at the bottom right.

|UPDATED|11/10/2003 9:12:45 AM|/UPDATED|



Radiator draincock on my 73' ?

Posted: 11/10/03 5:47pm Message 4 of 8
Former Member
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San Antonio, TX - USA
Joined: 9/8/2003
Posts: 117
Vette(s): 1973 Corvette Roadster Elkhart Green, 300hp 4-spd // 2003 Millinium Yellow Coupe
No bolt to be found either, guess I'm yanking the lwr hose....


Radiator draincock on my 73' ?

Posted: 11/10/03 7:29pm Message 5 of 8
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Overland Park, KS - USA
Joined: 7/9/2003
Posts: 914
Vette(s): 1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day. 2023 Accelerate Yellow HTC Stingray
My '73 L-82 has the standard drain petcock on the passenger side bottom corner. It's the original radiator. Hope yours has one.

Marc
|headscratch|


1973 L-82 4 spd

Radiator draincock on my 73' ?

Posted: 11/10/03 8:01pm Message 6 of 8
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Waterford, MI - USA
Joined: 9/13/2002
Posts: 1754
Vette(s): 1973 Red coupe
Mine is on same side as the lower hose under the trans line.

|UPDATED|11/10/2003 8:01:22 PM|/UPDATED|



Brian - NCM Lifetime Member

73 coupe L48, Flat-top pistons, Performer RPM Heads, Crane Cam and roller rockers, Holley 650 vac sec. Performer intake,
3.55 gear BTO 200-4R trans,
Leather seats, Seatbelt Plus 3point seatbelts, Pioneer CD player
Magnaflow Exhuast System

Dewitt radiator and dual electric fans
Borgeson Steering box
 


Radiator draincock on my 73' ?

Posted: 11/11/03 7:44pm Message 7 of 8
Former Member
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San Antonio, TX - USA
Joined: 9/8/2003
Posts: 117
Vette(s): 1973 Corvette Roadster Elkhart Green, 300hp 4-spd // 2003 Millinium Yellow Coupe
Radiator is out, no drain on it at all....

Rick


Radiator draincock on my 73' ?

Posted: 11/12/03 9:32am Message 8 of 8
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Schaumburg, IL - USA
Joined: 11/6/2003
Posts: 7
Vette(s): 73 - 454 mofified with 9.25:1cr, Crane 272 cam, reworked valve train, Sean Murphy Q-Jet, 2400 stall, 3.55:1 gears and everything else new - what else.
To my knowloedge the Harrisons came with drain cocks on the passemgers lower side below the lower hose. It may be a threaded bolt also. Aftermarket replacements of the cheaper kind don't usually have one. Modine is a good brand for a 3-4 core with a drain cock.


in Forum: C3 Cooling and Heating Systems


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