Expansion Plug and the Y block head


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By Daniel Jessup - 18 Years Ago
Looking through some of Mummert's info the other day, and he made mention of the fact that you need to make sure you have a usable "set" of heads, giving reference to the way the intake manifold water ports only go through the front water ports (either side) of each head. The rear ports only have a plug on one side and a threaded plug for the temp sender on the other. Can I use an expansion plug for one of those water ports on my C head that has eroded somewhat? Or is the heat just too much?w00t
By Ted - 18 Years Ago

An expansion plug will work just fine at this location.