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Thread: Changed My Radiator Cap

  1. #1
    Registered Member
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    Jul 2020

    Member #:4419
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    Wellington, Kasas
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    Changed My Radiator Cap

    After doing a serious amount of reading here and on the "other" website I decided to change the radiator cap on my 57 with original V8 position radiator and heater core. Had been running a Gates # 31517 15-18 lb. cap with a safety vent lever. Decided did not want to take the chance with blowing the heater core with the resulting mess and hassle. Switched to a Stant # 10328 7 lb. cap which also has the safety lever. Weather has not been very co-operative in getting the 57 out to see how the temp gauge does after the switch.

  2. #2
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    bethlehem, pa
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    i replaced mine with a 7 pounder, it`s a custom one, 8 sided like a stop sign. sanded it and painted it silver, looks pretty neat, `cause i have absolutely no chrome under the hood, only polished aluminum.

  3. #3
    Registered Member carls 56's Avatar
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    Jan 2011

    Member #:33
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    Culpeper, Va.
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    i think you made a good move to the 7lb..
    ARMY NAM VET, very proud!

    56 210 4dr

    drive and enjoy them while you work on them, life is to short.

  4. #4
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    Apr 2012

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    For me, blowing the heater core with a higher pressure cap is overrated. If it blows, it was going to anyway.

  5. #5
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    that`s true, rick.

  6. #6
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    May 2012

    Member #:625
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    Those guys who preach this crap on the other site are idiots my new heater core had a tag that said it was rated at 20 pounds. The reason they leak is more old age than pressure.

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