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4 or 6 bolds on the valvecover ?
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Zorc
Posted 2023-08-05 10:27 AM (#631173)
Subject: 4 or 6 bolds on the valvecover ?



Regular

Posts: 97
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Location: North Germany
I wonder if my cylinder heads are even original.
My valve covers have 4 bolt holes, my cylinder heads have 6 bolt holes.
On this page I learned that there were 6 holes from 1963: http://www.chrysler300club.com/tech/vcovers/63.html


My car is from 1961.

I also don't know what this funny metal holder on the right valve cover back is for ? For ignition cables it is not suitable.

Can someone enlighten me ?
Thanks
Roger





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(halter.jpg)



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Powerflite
Posted 2023-08-05 10:37 AM (#631175 - in reply to #631173)
Subject: Re: 4 or 6 bolds on the valvecover ?



Expert 5K+

Posts: 9722
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Location: So. Cal
Yes, your 6-bolt heads are from a later engine. I believe that holder is for the spark plug wires. It is missing the plastic insert and is installed on the wrong side of the engine. I believe it goes on the front, on the driver's side. An original right side valve cover should have a tube coming up that the draft tube or PCV connected to. And in 1961, the left and right valve covers were identical. The tube connection for the draft tube was used to mount the oil fill cap on the driver's side. So these are later style covers that are improperly placed on your engine.

Edited by Powerflite 2023-08-05 10:42 AM
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Zorc
Posted 2023-08-05 10:45 AM (#631176 - in reply to #631173)
Subject: Re: 4 or 6 bolds on the valvecover ?



Regular

Posts: 97
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Location: North Germany
Thank you Nathan,
I was afraid of something similar - do you think it is or could be a problem ?
Soon I will change the hydro tappets, maybe then I will see something more.
Roger




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(right side.jpg)



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Powerflite
Posted 2023-08-05 10:47 AM (#631177 - in reply to #631173)
Subject: Re: 4 or 6 bolds on the valvecover ?



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The only problem is if that bracket makes contact with your hose and rubs a cut into it. Otherwise, it is purely aesthetic differences.

Looking at the full cover, I'm not sure that bracket is for the ignition wires. It could be used on a later engine for holding some other wire harness in the back. But the plastic insert is missing from it so that's why it looks odd.

Edited by Powerflite 2023-08-05 10:52 AM
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Zorc
Posted 2023-08-05 10:52 AM (#631178 - in reply to #631173)
Subject: Re: 4 or 6 bolds on the valvecover ?



Regular

Posts: 97
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Location: North Germany
In fact, there no direct contact. Maybe i can try to change the covers ( left / right ) .
I thougt about problems because of the cylinderheads . or are the newer ones otherwise the same ?

i can look for some pictures on the net, maybe i can find a car with these covers


Edited by Zorc 2023-08-05 10:54 AM
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Powerflite
Posted 2023-08-05 10:58 AM (#631179 - in reply to #631173)
Subject: Re: 4 or 6 bolds on the valvecover ?



Expert 5K+

Posts: 9722
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Location: So. Cal
There are some minor differences like compression chamber sizes, valve sizes, etc. But there shouldn't be a problem running them on an older engine. If you can tell us the casting number on the top of the heads, inside the valve cover, we can give you more info on when they would have been used. You will likely have to remove the rocker arms to see the number though. You can almost see the number in your first picture, but the end of it is hidden.

Edited by Powerflite 2023-08-05 11:01 AM
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Zorc
Posted 2023-08-05 11:07 AM (#631180 - in reply to #631173)
Subject: Re: 4 or 6 bolds on the valvecover ?



Regular

Posts: 97
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Location: North Germany
Thank you,
the next few weeks I want to change the hydro tappets ( one rattles ) and then I take pictures of the numbers of the heads and the block and post them here .
Then the rocker arms have to come out anyway.
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wayfarer
Posted 2023-08-06 5:12 PM (#631200 - in reply to #631173)
Subject: Re: 4 or 6 bolds on the valvecover ?



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Do you already have the new lifters? If not, I'd be curious to hear of your sources if stateside.
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Zorc
Posted 2023-08-26 6:12 AM (#631568 - in reply to #631173)
Subject: Re: 4 or 6 bolds on the valvecover ?



Regular

Posts: 97
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Location: North Germany
Hello Gary,
i got new lifters.
It is not easy to order some from Germany. In Germany I pay about 18$ per piece for the cheapest ones. Shipping from the USA varies between $20 and $85. I found a dealer who offered me a set of lifters complete with shipping and taxes for about 100$. The dealer is called floridapartsdirect. Link : https://www.ebay.de/itm/235058822693
The shipping was very fast, the lifters look good - but : 2 pieces were obviously used. Complaining from Germany is not useful - I installed them. However, I have all previously opened and filled with fresh oil. Installed them and the engine runs well and quietly. So ultimately satisfied.





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Zorc
Posted 2023-08-26 6:19 AM (#631569 - in reply to #631179)
Subject: Re: 4 or 6 bolds on the valvecover ?



Regular

Posts: 97
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Location: North Germany
Powerflite - 2023-08-04 4:58 PM
If you can tell us the casting number on the top of the heads, inside the valve cover, we can give you more info on when they would have been used. You will likely have to remove the rocker arms to see the number though. You can almost see the number in your first picture, but the end of it is hidden.


Hello Nathan,
now i got the numbers from my heads . Both sides are marked with 2780915 - 1.
Maybe you can tell me something about the heads.
The engine number shows me - if I`m right - that i have the original engine block.
I also changed the Valvecovers left / right. Looks better and the clamp for the sparkplugcables make sense.


Thank Roger



Edited by Zorc 2023-08-26 6:27 AM




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57chizler
Posted 2023-08-26 1:10 PM (#631584 - in reply to #631569)
Subject: Re: 4 or 6 bolds on the valvecover ?



Expert

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Location: NorCal
The 2780915 casting is a one-year-only 440 HP head, it has closed combustion chambers and 2.08" intake and 1.74" exhaust valves.

The stamped R 41 on the top pad is the year code for 1961 413 and the 12 2 means the engine was assembled on December 2, 1960.

Edited by 57chizler 2023-08-26 1:12 PM
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Zorc
Posted 2023-08-27 8:36 AM (#631615 - in reply to #631173)
Subject: Re: 4 or 6 bolds on the valvecover ?



Regular

Posts: 97
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Location: North Germany
Thanks, good to know in case I do need parts. I saw that one of the rocker arms is very worn on the contact surface to the valve. I noticed that the rocker shaft is oval at the ends because someone over tightened the bolts. It may need to be replaced.
The 440 has a larger bore - is that healthy to put on the smaller bore (413) a head for a larger bore on it?

Roger
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58coupe
Posted 2023-08-27 11:53 AM (#631620 - in reply to #631173)
Subject: Re: 4 or 6 bolds on the valvecover ?



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Location: Alaska
The heads you have are the very desirable high performance stock heads. No problem putting them on other BB or RB engines unless some after market piston has been installed that is not compatible with them.
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57chizler
Posted 2023-08-27 2:38 PM (#631622 - in reply to #631615)
Subject: Re: 4 or 6 bolds on the valvecover ?



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Location: NorCal

Some big blocks with a smaller bore than the 440 had the same sized valves...including the 413.
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Zorc
Posted 2023-10-16 5:45 AM (#632351 - in reply to #631173)
Subject: Re: 4 or 6 bolds on the valvecover ?



Regular

Posts: 97
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Location: North Germany
I had some problems with leaking at the cylinder head, so I had the head ground down a bit.
At least now I can show you the underside of the head.
There is always something
Greetings
Roger




(head1.jpg)



(head2.jpg)



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Attachments head1.jpg (137KB - 55 downloads)
Attachments head2.jpg (189KB - 55 downloads)
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