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Old 07-18-2026, 09:43 AM
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Default Radiator plugs for leak testing?

Are there rubber plugs to cover the inlet/outlet to test for core/tank leaks?

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1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune [email protected]
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
  #2  
Old 07-18-2026, 11:21 AM
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Try local commercial ac electrical ac plumbing supplier.

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Last edited by Region Warrior; 07-18-2026 at 11:29 AM.
  #3  
Old 07-18-2026, 11:28 AM
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Are there any radiator repair shops near you?
They'll should have them.
Only one or two shops left here long lake Michigan from I'll to Michigan city steel mills.
Used be 5-6 in both countries.

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Old 07-18-2026, 03:30 PM
SRGN SRGN is offline
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I've used 2 radiator hoses with a coupler connecting them in the past.

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Old 07-18-2026, 07:49 PM
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Quote:
Originally Posted by SRGN View Post
I've used 2 radiator hoses with a coupler connecting them in the past.
Probably the easiest to chase up!
Did find these
https://www.pegasusautoracing.com/pr...RoC7d4QAvD_BwE

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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune [email protected]
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
The Following User Says Thank You to Skip Fix For This Useful Post:
  #6  
Old 07-18-2026, 08:37 PM
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Skip, formerly I've used a piece of old inner tube with a hose clamp over the neck, when you're poor, you find stuff lying around the garage to use.................

I still have inner tube and hose clamps lying around my garage, probably still plug it that way today.............LOL


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  #7  
Old 07-19-2026, 10:14 AM
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That would be an easy way!

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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune [email protected]
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
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