C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Jun 22, 2020 | 01:27 PM
  #21  
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Its just 3/8" id rubber overflow hose. My rad guy gave me a piece. Any radiator guy will have it.
From rad to tank I used Gates 3/8" heater hose.


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Old Jun 22, 2020 | 01:30 PM
  #22  
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Any auto parts store should have rubber tubing you can buy by the foot.
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Old Jun 22, 2020 | 01:40 PM
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if i wanted a new one (mine is old looking) where can these be bought?
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Old Jun 22, 2020 | 02:11 PM
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73 is one year only, and unavailable.
You can use a 74, but you need a 1" spacer to make it work.


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Old Jun 22, 2020 | 02:28 PM
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so after I get the new cap and install a hose, I should fill up the radiator to the top and have coolant in the bottle up to the cold fill line?
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Old Jun 22, 2020 | 02:55 PM
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Originally Posted by rct2007
so after I get the new cap and install a hose, I should fill up the radiator to the top and have coolant in the bottle up to the cold fill line?
Yes
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