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The 352 in my 65 Galaxie has screw in freeze plugs on one side and press in on the other, any reason why this was done, I mean I guess it is a 352 I havent checked the stroke yet, but ofcourse the only number on the whole block besides the date is C6ME and I've never heard of a 352 with screw in freeze plugs. Any ideas.
Has the engine been rebuilt? The only idea I can come up with is if while it was rebuilt someone tried to put to big of a plug in and muffed things up so they decided to thread the hole in order to get the freeze plug to seal properly
C = 1960-69 ---> Which decade
6 = Year in that decade
M = Mercury ---> Which carline
E = Engine Group --->Which engineering group
I was told it had been rebuilt, one plug looks like a normal screw in type but the other looks like a flat peice of round metal with a tap on it. So yeah im confused but always been curious about this.
what do you mean by screw in plugs.is the block threaded.there are different types of freeze plugs.some have an o ring around them with a screw in the center which you use to thighten them.
Sounds like he has the expandable neoprene freeze plugs, which do have a flat piece of round metal and a stud.
You'd best get those things out. They are OK for a quick fix, but I wouldn't trust them. I've had them blow out on me more than once. If you're going to use them, make sure to change them at least once a year, as they get rotten after awhile.
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