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How worried should I be about a block heater butterfly clamp still in block?

Discussion in 'Chevy C/K Truck Forum' started by nephyrias, Nov 23, 2010.

  1. nephyrias

    nephyrias New Member

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    I have an 89 Silverado c1500 5.7 and I changed the block heater because it was leaking, but when I got the old heater out I was unable to remove the butterfly clamp. Is that something that I can get to from the intake manifold and how worried should I be that it is still in there?
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