I have two types of headbolt washers for aluminum heads. Don't know which would be the right ones for '48 UL. thanks-Bob
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Originally posted by Re-cycleInc View PostPretty sure it's the one in the first picture. Those are the only types that I've seen in the top end sets for my 45" models and I think they are the same for all flatheads.
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Actually, it's the other way around, beveled early/flat top late. Both carry the same part number, 15-39 (16822-39).
The real problem is determining the date of change. I have a factory photo of a 1941 with head off and beveled washers. The washers that came off of a 1943 NOS motor were beveled. The washers on my 1951 & 1952 WLAs (originals) are flat.
Unless you can verify otherwide with an original 1947 or 1948 Aluminum head equipped UL, I'd go with the flat top washers.Bruce Palmer III
AMCA #667
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Originally posted by oldsouthmcy View PostActually, it's the other way around, beveled early/flat top late. Both carry the same part number, 15-39 (16822-39).
The real problem is determining the date of change. I have a factory photo of a 1941 with head off and beveled washers. The washers that came off of a 1943 NOS motor were beveled. The washers on my 1951 & 1952 WLAs (originals) are flat.
Unless you can verify otherwide with an original 1947 or 1948 Aluminum head equipped UL, I'd go with the flat top washers.
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