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starlightcoupe
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NOV 08, 07:22 PM
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While cleaning out my deceased father-in-law's huge garage, I came upon a set of older Chevy heads. One casting number is 3774692 and it appears to be a 283 head from 1958 to 1960 Corvette or other fast car of the era. It is a 1.72 head with 62 CC (I think) compression chamber.
The second head is a 3795896, also from a 283 and allegedly a 60CC compression chamber and 1.72 in exhaust valves. Not sure of it. Just repeating what I found online.
I'd like to sell them as a set. My question is, are they similar enough or identical to sell as a pair? I want to be honest about the heads and any Chevy guy worth anything would know if they are or not but I don't want to misrepresent anything especially to someone who doesn't know much about engines.
I'd appreciate any replies.
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thesameguy
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NOV 10, 03:53 PM
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Most people would want the casting numbers, so I'd provide them and stop at that. No point making guesses or judgments for other people. Let them decide whether they want to use them as a pair or not.
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starlightcoupe
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NOV 10, 10:40 PM
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| quote | Originally posted by thesameguy:
Most people would want the casting numbers, so I'd provide them and stop at that. No point making guesses or judgments for other people. Let them decide whether they want to use them as a pair or not. |
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As I said, I'd like to sell them as a set or at least usable as a set. I made a mistake in my original post--I think both head chambers are 62CC and neither have accessory holes/taps. If I can't sell them, I may simply take them to a metal recycler. If I still built engines, I'd try them and see what I could get.
Thanks for your input.
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Raydar
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NOV 12, 12:36 AM
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What do the casting marks on the ends of the heads look like?
A rectangle with two humps? (aka "double hump" heads)
A rectangle with two triangles (aka "castle" heads)
Both have been described by different people I've talked with as "performance" heads.
This was in a previous lifetime. This info may have been superseded by something different.
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starlightcoupe
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NOV 12, 12:10 PM
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| quote | Originally posted by Raydar:
What do the casting marks on the ends of the heads look like?
A rectangle with two humps? (aka "double hump" heads)
A rectangle with two triangles (aka "castle" heads)
Both have been described by different people I've talked with as "performance" heads.
This was in a previous lifetime. This info may have been superseded by something different. |
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I'll check them again this morning but I looked for the camel humps when I removed them and nothing showed. It was bare as Mother Hubbard's cupboard. In fact as I remember, both ends were bare even of accessory taps for generator/alternator, power steering, AC or anything else. The casting dates are K 223 and K 90. I think this translates to November 22, 1963 for the 3795896 head and November 9, 1960 for the 3774692 head. Been a long time for me since I rebuilt anything.
I have the heads at my wife's Dad's house and I'll take a quick look today. They were in a block a guy was rebuilding for my brother in law but I don't think it was a performance engine because it was a 307 with two bolt mains. Now he wants me to get his 1967 Mustang running. Never happen. 
Thanks for your input. I really appreciate it.
Edit UPDATE: Raydar, Both heads have the castle cast into the ends of the heads. (It looks like a map symbol for a school to me). What does this signify or mean?? I have a good excuse for not seeing the casting: I am near 78. My excuse and sticking with it.
To 2.5: The compression chambers on both heads are the same--62cc Valve size is the same.[This message has been edited by starlightcoupe (edited 11-12-2015).]
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2.5
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NOV 12, 01:58 PM
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So one is 60cc and one is 62cc?
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Patrick
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NOV 12, 06:48 PM
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| quote | Originally posted by 2.5:
So one is 60cc and one is 62cc?
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Come on, get with the program. 
| quote | Originally posted by starlightcoupe:
I made a mistake in my original post--I think both head chambers are 62CC...
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Raydar
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NOV 12, 10:16 PM
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| quote | Originally posted by starlightcoupe:
...
Edit UPDATE: Raydar, Both heads have the castle cast into the ends of the heads. (It looks like a map symbol for a school to me). What does this signify or mean?? I have a good excuse for not seeing the casting: I am near 78. My excuse and sticking with it.
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According to my brother (and this was a lonnnnnng time ago) the castle casting marks supposedly indicated a high performance head of some sort. This was before I ever heard about "double hump" heads. I think it was in the context of a 327, since that was the "badazz" engine at the time (around '65 or so.)
But again, this is all ancient info.
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Raydar
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NOV 12, 10:29 PM
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starlightcoupe
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NOV 13, 10:22 PM
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Thanks for the info, Raydar and others. I had seen much of it on another site where it said the 3774692 head was once they used on the '58 283 Corvette. I am not concerned about much of it but I don't want to represent them as an identical pair. I'll take another's advice and simply list them with the info I have and recommend they do some checking online.
I had a '57 Corvette in 1958 with a 270 hp engine and I had more fun than any 20 year old should have had.
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