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Old 07-23-2020, 12:58 AM   #1
Neo Dutch
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Default Engine Numbers

I recall that there was a site that had many photo samples of HD engine numbers so you could see how they have changed over the years, and decipher if your numbers are kosher.

Does anyone have the link please.

TIA.
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Old 07-23-2020, 07:09 AM   #2
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Default Re: Engine Numbers

That's Chris Haynes's site.

https://www.vintageamericanmotorcycles.com/v/Numbers/
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Old 07-23-2020, 07:35 PM   #3
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Default Re: Engine Numbers

That's the one.
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Old 07-24-2020, 12:59 AM   #4
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Default Re: Engine Numbers

Please approach VAM case numbers with caution because some that are not consistent with factory stamping for the year and/or model concerned are not described as such. For example: 39EL1414 (page 2); 41FL3553 (page 2); 47EL13649 (page 4); 50FL11328 (page 5); 52FL2330 (page 5); and 65FLH27125 (page 6). And several others fall into the same category.
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Old 07-26-2020, 09:52 AM   #5
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Default Re: Engine Numbers

47EL13649...lol.
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Old 07-26-2020, 08:02 PM   #6
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Default Re: Engine Numbers

47EL could well be a restamped number on a set of weak early cases that smashed out the drive side.
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Old 07-27-2020, 01:31 AM   #7
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Default Re: Engine Numbers

On CAI in 2015 I told Chris about six VAM case numbers in particular that may be non-factory but were not described as such. After reading my post he labelled two of them as bogus on VAM. The other four, including 47EL13649, remained on VAM with no description. I thought 13649 was too high for a 47 Knuckle, some characters were not consistent with normal H-D types used for 47 models, and I said a clear close-up may reveal more about them and the style of left case.

Last year, also on CAI, I said the 4s appear to have an open back and no serif when normally for 47 Id expect an open top and a serif across the base. The 3 appears to be sans serif but normally Id expect a serif at top left. I explained that during the 47 model year some SN characters changed and the E and 1 were not the types Id expect for a very late 47 and I again said I thought 13649 was too high anyway.
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Old 07-27-2020, 09:04 PM   #8
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Default Re: Engine Numbers

Quote:
Originally Posted by Neo Dutch View Post
47EL could well be a restamped number on a set of weak early cases that smashed out the drive side.
Negative. 13XXX is too high for any year of Knuck.
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