Cam Spec. Questions

Gear Case (cams, idlers, cam cover)
ingram
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Re: Cam Spec. Questions

#16

Post by ingram »

Cotten wrote:Ingram!

Pans and shovels used the same Victory cam through '69.
The parts catalog suggests the standard FL cam was also available for shovels.

My Knuck cams are quite worn, but the intakes appear the same.

FLH, FL, and 61" Pan cams all show obvious different intake profiles, so the varied intakes are a Pan-era innovation.

....Cotten
I'm not sure if I should start a new thread, but I wanted to know more about these camshafts. Is the "Victory" camshaft the same as the "H" camshaft? Does the "H" camshaft for the Panhead have the same specs as the Shovelhead "H" camshaft?



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Re: Cam Spec. Questions

#17

Post by Cotten »

Ingram!

The FLH cam is listed as "Victory" in the parts book for '56 through '69.

The '70 and later cam, and parts catalog, is out of my zodiac.
It would surprise me if the grind is different.

....Cotten

ingram
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Re: Cam Spec. Questions

#18

Post by ingram »

Is there a Panhead "H" camshaft?

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Re: Cam Spec. Questions

#19

Post by 1950Panhead »

Now for the obvious question:
If the MOCO found reason to vary the two intakes,
why do aftermarket designers ignore it?
It costs more to make a camshaft with multiple cam profiles and someone has to pay for it.
With many Harley owners living on the edge of financial ruin they can ill afford it.
You get what you pay for.
Ok, enough of that.
Jerry

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Re: Cam Spec. Questions

#20

Post by Cotten »

ingram wrote:Is there a Panhead "H" camshaft?
Yes Sir!

It is the same as the "Victory", and stamped with an H on the end lobe.

I've got one on the wall with one and three quarters of an H.

It is the cam of the golden age of the MOCO.

....Cotten

ingram
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Re: Cam Spec. Questions

#21

Post by ingram »

Cotten wrote:
ingram wrote:Is there a Panhead "H" camshaft?
Yes Sir!

It is the same as the "Victory", and stamped with an H on the end lobe.

I've got one on the wall with one and three quarters of an H.

It is the cam of the golden age of the MOCO.

....Cotten
...and you can look at this camshaft and obviously see a physical difference between the two intake lobes?

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Re: Cam Spec. Questions

#22

Post by RUBONE »

Are you sure it is marked H Cotten or is it an HL, the predecessor to the victory cam.

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Re: Cam Spec. Questions

#23

Post by Hauula Pan »

RUBONE: The reason for asking about the FL and FLH was because being a 1952 FL I figured it came with an FL cam and there was probably a reason why the MOCO used that profile, and also because I've been told that the FLH cam also worked well, improved performance a bit & didn't effect starting. So I figured that finding an after market grind that closely matched one of them would be a good idea. (As I said earlier, the combination of low compression pistons and the Andrews low compression #1 cam has not worked out well) since I'm going back to stock compression pistons I figured a cam close to a stock FL or FLH would be the best way to go. Since originals in good condition are scarce, at least around here, I wanted to know what their profiles were so I could find something in the after market that would be the closest match. I know there are a zillion after market cams available each designed to provide certain performance enhancements at different rpm ranges etc. and each has certain advantages & disadvantages depending on your intended use & riding style. I just figured the stock FL & FLH cams were what the MOCO came up with & they seem to work well & be reliable so finding something close to them would be a good way to go. I've got other bikes for going fast & I mostly just want this one to be reliable again.

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Re: Cam Spec. Questions

#24

Post by Huck »

I run an H in mine (58 milk crate dumpster diving rigid build) with solids. Stock compression SU carb & 2 into 1 exhaust. Super easy starter, cold or hot. 23 front sprocket all other stock. It runs strong 55-60 mph, whack it open it will spool up to 80 at a surprising rate for what it is. I also have a 100 hp rigid evo, its been sitting around allot, the Pan is more fun.

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Re: Cam Spec. Questions

#25

Post by Cotten »

ingram wrote:...and you can look at this camshaft and obviously see a physical difference between the two intake lobes?
To my eye, yes,..
For what that is worth.

Is the difference not apparent on later Shovel cams?
RUBONE wrote:Are you sure it is marked H Cotten or is it an HL, the predecessor to the victory cam.
Tell us more about the HL, Robbie!
HCAMSTPS.jpg
It isn't in the parts book, so it surely can't exist.

....Cotten
You do not have the required permissions to view the files attached to this post.

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Re: Cam Spec. Questions

#26

Post by RUBONE »

It isn't in the parts book, so it surely can't exist.
25522-51R Cam Gear......1948-1954 74 O.H.V.
May 1954 Competition parts book
Sometimes referred to as the "TT" cam (or HL= high lift), introduced at the same time as the short oil tank and special frame.
In the '55 book it no longer exists...replaced by the standard production FLH or "Victory" cam. Used in the first FLH prototypes.

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Re: Cam Spec. Questions

#27

Post by Cotten »

But Robbie!

The ordinary parts books list the standard cam for '55 FLH models.
And that's what I found in a reasonably-unmolested '55 FLH on my bench.

(The HL just arrived from a swap meet...)

....Cotten

ingram
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Re: Cam Spec. Questions

#28

Post by ingram »

Cotten,

The intake profile on the front cylinder is 220 and the rear is 232 degrees at 0.053 tappet lift. The lobe lift is the same on both. I wouldn’t trust my eye to see the 12 degree difference. I would have to measure it.

Are all the “Victory” camshafts marked “HH” or is that a double-stamp error? The Shovelhead camshafts are marked with a single “H”.

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Re: Cam Spec. Questions

#29

Post by Cotten »

Doh! I was looking at the wrong lobes, Folks!
(Was thinking the two middle instead of the two end lobes for the intakes.)

But even still,... the front intake lobe does look more pointed than the rear.

Now I must dig the Knuck cam back out again...

And Ingram!

I imagine the hH is just a miss-stamp.

....Cotten

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Re: Cam Spec. Questions

#30

Post by tomfiii »

Hauula Pan , You need to check timing if changing cam ,because there is no guaranty that everyone will grind their cam to absolute perfection and any adjustment of points may cause a need to reset timing for ignition .

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