#5 stamped on Left side case??

All Panhead related topics
Post Reply
PanHunter
Posts: 11
Joined: Sat Oct 27, 2018 10:57 pm
Bikes: 1949 panhead
Location: California
Has thanked: 1 time

#5 stamped on Left side case??

#1

Post by PanHunter » Sat Mar 09, 2019 1:07 am

I’ve got a pan motor here I’ve been working on and there’s a number 5 stamped on the front left side of the case, I’ve never seen this before and was hoping someone could shed some light on it. Not sure if it a re stamped aftermarket case or if there’s a chance Harley actually did that. Any info would be great. Thanks

[image]Image[/image]



RUBONE
Moderator
Posts: 5347
Joined: Sat Nov 15, 2008 4:09 am
Bikes: Multiple H-D, Ducati, BMW, Triumph, BSA,...
Has thanked: 36 times
Been thanked: 576 times

Re: #5 stamped on Left side case??

#2

Post by RUBONE » Sat Mar 09, 2019 1:28 am

Most likely an inspectors stamp. It is an H-D case.

PanHunter
Posts: 11
Joined: Sat Oct 27, 2018 10:57 pm
Bikes: 1949 panhead
Location: California
Has thanked: 1 time

Re: #5 stamped on Left side case??

#3

Post by PanHunter » Sat Mar 09, 2019 4:43 am

RUBONE wrote:
Sat Mar 09, 2019 1:28 am
Most likely an inspectors stamp. It is an H-D case.
Interesting, was it a common thing for them to use the inspection stamps? Ive just never seen on like this before. Thanks

George Greer
Site sponsor
Site sponsor
Posts: 1345
Joined: Wed Mar 24, 2010 5:48 am
Bikes: 1942 WLA Type III
Hybrid WL/KH bobber project.
58 FL
Location: Markt Einersheim, Bavaria. and soon to be back in the US, Portland Oregon
Has thanked: 236 times
Been thanked: 37 times
Contact:

Re: #5 stamped on Left side case??

#4

Post by George Greer » Sat Mar 09, 2019 8:58 am

I have that same number stamped on my 58FL project engine.

George
Attachments
engine number.JPG
engine number.JPG (570.21 KiB) Viewed 438 times

1950Panhead
Posts: 1756
Joined: Wed Jul 07, 2010 4:28 am
Bikes: 1950Panhead
Location: USA
Been thanked: 148 times

Re: #5 stamped on Left side case??

#5

Post by 1950Panhead » Sat Mar 09, 2019 1:51 pm

I’ve got a pan motor here I’ve been working on and there’s a number 5 stamped on the front left side of the case, I’ve never seen this before and was hoping someone could shed some light on it. Not sure if it a re stamped aftermarket case or if there’s a chance Harley actually did that. Any info would be great. Thanks
It was stamped in the factory after passing inspection.

Speeding Big Twin
Posts: 955
Joined: Wed Dec 31, 2008 2:29 am
Bikes: H-D
Location: Western Australia
Has thanked: 1 time
Been thanked: 75 times

Re: #5 stamped on Left side case??

#6

Post by Speeding Big Twin » Sun Mar 10, 2019 3:46 am

PanHunter, my best guess is that the 5 may be an inspector stamp. Apart from some 58FLs I’ve also seen it on the following engines: 56FL, 56FLH, 57FL, 57FLH, 58FLH, 59FL, 59FLH, 60FL, 60FLH, 61FL, 61FLH, 62FL, 62FLH, 63FL, 63FLH, 64FL and 64FLH.

Other numbers I’ve seen in that area:
2 on 56FL, 56FLH, 58FL, 58FLH and 59FLH
6 on 61FL and 65FLH
9 on 64FL, 64FLH, 67FL, 67FLH, 68FL, 68FLH and 69FLH.

On a certain 62FL the number was applied horizontally so I’m not sure if it was meant to be 6 or 9.

I agree your case is H-D. Because it’s FL you may find a certain type of 7 stamped on top of each case near the rear engine mounting bolts.
At the back of the cases you may find other letters and/or numbers although I haven’t seen many of them.

Just out of curiosity, do your belly numbers begin with code number 1 or code number 3? Thanks.
Eric

wagon man
Posts: 22
Joined: Fri Dec 21, 2018 4:08 pm
Bikes: 1958 FL , 1950 Panhead Chopper
Location: Oregon

Re: #5 stamped on Left side case??

#7

Post by wagon man » Tue Mar 12, 2019 6:08 am

My 58FL has a 0 stamped there .

PanHunter
Posts: 11
Joined: Sat Oct 27, 2018 10:57 pm
Bikes: 1949 panhead
Location: California
Has thanked: 1 time

Re: #5 stamped on Left side case??

#8

Post by PanHunter » Fri Mar 22, 2019 3:34 am

Speeding Big Twin wrote:
Sun Mar 10, 2019 3:46 am
PanHunter, my best guess is that the 5 may be an inspector stamp. Apart from some 58FLs I’ve also seen it on the following engines: 56FL, 56FLH, 57FL, 57FLH, 58FLH, 59FL, 59FLH, 60FL, 60FLH, 61FL, 61FLH, 62FL, 62FLH, 63FL, 63FLH, 64FL and 64FLH.

Other numbers I’ve seen in that area:
2 on 56FL, 56FLH, 58FL, 58FLH and 59FLH
6 on 61FL and 65FLH
9 on 64FL, 64FLH, 67FL, 67FLH, 68FL, 68FLH and 69FLH.

On a certain 62FL the number was applied horizontally so I’m not sure if it was meant to be 6 or 9.

I agree your case is H-D. Because it’s FL you may find a certain type of 7 stamped on top of each case near the rear engine mounting bolts.
At the back of the cases you may find other letters and/or numbers although I haven’t seen many of them.

Just out of curiosity, do your belly numbers begin with code number 1 or code number 3? Thanks.
Eric
Sorry for such a late response been slammed at work. Thank you for all the info. I've now noticed a few recently with the inspection stamp. Many it was just something i looked past previously. To answer your question though the belly numbers do start with a 1

Speeding Big Twin
Posts: 955
Joined: Wed Dec 31, 2008 2:29 am
Bikes: H-D
Location: Western Australia
Has thanked: 1 time
Been thanked: 75 times

Re: #5 stamped on Left side case??

#9

Post by Speeding Big Twin » Fri Mar 22, 2019 4:14 am

Thanks for your reply. Most 58 Pans have BNs beginning with code 1 but I have a few examples starting with code 3 and they appear to be authentic.
Eric

Post Reply

Return to “Panhead”