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Old 08-30-2020, 07:28 PM   #11
Brian
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Join Date: May 2010
Location: Masterton, New Zealand
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Default Re: Military flathead engines

Ian, you may well be correct, I've read that info somewhere too, but I still maintain that every Pilot engine I've seen has the freeze plugs at back of each bank of cylinders. Every 21 stud bren gun carrier engine I've seen did not have that feature.
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