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freeze plugs

  1. Core/shaft plugs sizes?

    Cooling System
    I have an LN3 3800 out of a 90 Buick lesabre. I just have the engine, idk if it was real wheel or front w/d. I ordered a kit that came with 1 1/2in core plugs that felt kind of loose. The cam and balance shaft plugs were wrong too. Would anyone happen to know the sizes? I checked Napa and...
  2. Freeze Plugs - What good are they?

    Cooling System
    I think one of the most useless things on an engine is the freeze plug. How about anyone else? Have you ever seen a freeze plug push out of an engine and actually save it? I think I have, but only once and it wasn't a hard freeze and it still had some coolant in it. Usually the heads still...
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