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03-17-2023, 12:36 PM
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#1 |
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Registered User
Join Date: Nov 2000
Location: Wheatfield IN, USA
Posts: 1,120
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LS3 Radiator Overflow port
Have a question in regards to the radiator overflow port that's below the radiator cap - I intend to run this line over to a plastic tank - similar to the factory one. Is that acceptable or is a pressurized tank needed ?
Added pic ......everyone likes pics
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1972 K5 - LS3/408 (595Hp) -6L80e-One Tons with 4.56, 20'' Beadlocks with 37'' rubber, full TMI interior, JL Audio ..... 1971 CREWMAX Build.....at body shop for couple more years 
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03-17-2023, 12:49 PM
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#2 |
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Post Whore
  
Join Date: May 2015
Location: Alabama
Posts: 14,662
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Re: LS3 Radiator Overflow port
My overflow tank is not pressurized, on my C30 I used the original 81tank and radiator
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
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03-18-2023, 08:38 AM
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#3 |
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Registered User
Join Date: Sep 2020
Location: Cleveland, Ohio
Posts: 543
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Re: LS3 Radiator Overflow port
No pressurized tank on mine. Just a standard overflow tank. It sucks in coolant when cold and pushes some out when warm.
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