1958 FL Engine...

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George Greer
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1958 FL Engine...

#1

Post by George Greer » Sat Apr 23, 2011 6:08 pm

Hi all...

Today I just got back from Holland picking up my newest charge to take care of.

1958 FL engine.

Once I get over the drive, I will take photos and post them so you guys can give me a heads up on what I got and tips and advice.

One thing that I do know.

Rear head, is a 50, the front head is unmarked.

George



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Re: 1958 FL Engine...

#2

Post by Bigincher » Sat Apr 23, 2011 8:25 pm

Be sure to read the casting date code and not the forging number.....

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Re: 1958 FL Engine...

#3

Post by RUBONE » Sat Apr 23, 2011 10:03 pm

George,
The heads marked -50 ended in '54 and were all plumber style heads. The next was a -55 which was closely followed by -56 which is what your '58 should have. However the markings are on the inside of the head under the pans so you will need to remove the pan to see it.
Robbie

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Re: 1958 FL Engine...

#4

Post by kitabel » Sun Apr 24, 2011 2:31 pm

http://www.victorylibrary.com/tech/panhead.htm" onclick="window.open(this.href);return false;

George Greer
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Re: 1958 FL Engine...

#5

Post by George Greer » Sun Apr 24, 2011 2:46 pm

Thanks for the link.

George

George Greer
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Re: 1958 FL Engine...

#6

Post by George Greer » Tue Apr 26, 2011 4:19 am

Got some pics.

Any info on the number 7 stamped into the rear mount? Both case halved are marked.

Or how about the number 5 on the left front???

Is the cam cover damage as bad as I am making it out to be in my head, or just a good welder to put it right?

Still, I am happy camper.

George
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Re: 1958 FL Engine...

#7

Post by jdpan » Tue Apr 26, 2011 4:38 am

Not sure about the 5 but I think I read somewhere that the 7 means FL... I think. Cam cover's a piece of cake, feel lucky that the little broken piece is still there..
viewtopic.php?p=42429" onclick="window.open(this.href);return false;

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Re: 1958 FL Engine...

#8

Post by 58flh » Tue Apr 26, 2011 1:10 pm

Looks like youre off to a good start--the cam-cover no biggie! I read that someone mentioned that the heads should have a 58 stamped, this is true--I own a 58flh & my heads are original to my cases!(WOW you never hear of these things anymore /but I got the motor more than 24yrs. ago now!. VERY-LUCKY) any way take your time -take it apart, i dont know if you are a wrench or not /but take pics. as you go & write shit down!!!!(it will help later). The stampings on your case-halves-are a good thing they match--somebody at sometime rebuilt that motor, & it hasnt been lost in any further separation, if there was another lower half separation. (GOOD-LUCK, Keep it upright! ) 58flh---sorry I made a mistake about the head stamp #s (56 for front & rear is correct) apologies

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Re: 1958 FL Engine...

#9

Post by Bigincher » Tue Apr 26, 2011 1:39 pm

Great score...!
The general consensus is that the '7' stamp indicates the motor is a 74 cubic inch FL, as opposed to a 61-inch EL.
This has always seemed very strange to me on motors past 1952, which was the last year the EL was produced.............

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Re: 1958 FL Engine...

#10

Post by UPSROD » Tue Apr 26, 2011 6:54 pm

A 58FLH motor would have H stamped on both halves instead
of 7.


Rod

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Re: 1958 FL Engine...

#11

Post by Bigincher » Wed Apr 27, 2011 12:13 am

George, can you show us a shot of the belly numbers...??

George Greer
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Re: 1958 FL Engine...

#12

Post by George Greer » Wed Apr 27, 2011 3:18 am

I have not taken that photo yet, but I will.

The weather's not as sunny as it was, and now rain, and more rain till Friday....but I will take more photos.

George

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Hybrid WL/KH bobber project.

58 FL, engine, frame swingarm, gas tanks.
Location: Markt Einersheim, Bavaria. and soon to be back in the US, Portland Oregon
Has thanked: 177 times
Been thanked: 30 times
Contact:

Re: 1958 FL Engine...

#13

Post by George Greer » Sat Apr 30, 2011 5:15 pm

Other photos of the engine.

Comments very welcome.

George
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Re: 1958 FL Engine...

#14

Post by Bigincher » Sun May 01, 2011 12:45 am

Belly numbers look good, Yes it's a '58.
Front head appears to be correct, rear head is a ..... 1953. Looks like it has an O-ring intake adaptor installed in place of the threaded nipple-- you can see the allen bolt in place of the rivet. Lot's of Helicoil's in the valve cover screw holes--- not neccesarily a bad thing, except maybe for directly over the intake port.... although some have been pushed through....
Intake manifold is correct, if it's cast aluminum. The same number is on the cast iron version, used on 1955-57 models.

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Re: 1958 FL Engine...

#15

Post by jdpan » Sun May 01, 2011 12:57 am

"Front head appears to be correct"

Curious on this one..... How can the front head be correct with no numbers on it? And the pushrod openings look totally wrong to me... Could it be some kinda aftermarket head? Did Harley ever produce heads with no casting dates?

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