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04-08-2023, 05:11 PM | #1 |
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Snyder’s head question
I have what I believe is a 6:1 Snyder’s head
I pulled it off a B engine that I bought last year. Using that as a frame of reference, I’m assuming the head on my coupe also has a Snyder 6:1 head. I haven’t driven it since I bought more than a year ago and I’m getting ready to get it running/driving. What are the odds these same marks without being the same head? Or do all model A heads have these “dots”? |
04-08-2023, 05:20 PM | #2 |
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Re: Snyder’s head question
Now that I’m looking, I see there are stock heads listed on eBay with those dots.
Is there any way to tell whether stock or Snyders head? |
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04-08-2023, 05:26 PM | #3 |
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Re: Snyder’s head question
A photo of the under side showing the combustion chambers would help.
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04-08-2023, 06:08 PM | #4 |
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Re: Snyder’s head question
Pic of the combustion chambers
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04-08-2023, 06:11 PM | #5 |
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Re: Snyder’s head question
Again, now that I’m looking, I’m thinking this is a stock head.
Do you agree? |
04-08-2023, 06:58 PM | #6 |
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Re: Snyder’s head question
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Looks like a Snyders 6.0 head to me. By the way, in my opinion, that is an excellent combustion chamber design. Ask Don at Snyders.
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04-08-2023, 07:53 PM | #7 |
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Re: Snyder’s head question
I have no dimple on my 6.0 Snyder head. Attached pic of combustion chamber.
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04-08-2023, 08:27 PM | #8 |
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Re: Snyder’s head question
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04-08-2023, 08:52 PM | #9 |
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Re: Snyder’s head question
And I think the combustion chamber is deeper (that may be an optical illusion) which all means that it is not a particularly high CR head.
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04-08-2023, 09:19 PM | #10 | |
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Re: Snyder’s head question
Quote:
That is an original Model A head. All original heads (and the Burtz head) have those marks. The 3 marks that you found are where core support wires exited the casting and most were ground off as part of the casting cleanup. |
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04-08-2023, 10:34 PM | #11 |
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Re: Snyder’s head question
The picture you show is a stock head.
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04-08-2023, 10:38 PM | #12 |
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Re: Snyder’s head question
I have always thought the snyder head has no marks at all on the top, where as a stock A head will have some casting #'s . True ?
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04-08-2023, 11:11 PM | #13 | |
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Re: Snyder’s head question
Quote:
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04-08-2023, 11:46 PM | #14 |
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Re: Snyder’s head question
Thanks for that info, Y block
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04-09-2023, 06:28 AM | #15 |
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Re: Snyder’s head question
Thanks fellas.
I’ve been messing with these cars off and on for 12 years or so and still amazes me how much I don’t know. |
04-09-2023, 10:14 AM | #16 |
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Re: Snyder’s head question
The problem with heads is everyone wants them to look stock on the outside. The only way to tell is by the combustion chamber. Even then someone may have cast a similar looking chamber (but deeper or shallower) knocking off a part without doing the hard work. You need to figure out the actual volume of the combustion chamber to know for sure.
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04-09-2023, 01:51 PM | #17 |
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Re: Snyder’s head question
Just got a Snyder's 6.0 head after flip flopping between 5.5 or 6 and the 6 does not have the dots.
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04-09-2023, 01:53 PM | #18 |
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Re: Snyder’s head question
The Snyder's 6.0 combustion chamber is pretty rough; would there be any benefit to smoothing it up or would that change the volume too much?
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04-09-2023, 06:21 PM | #19 |
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Re: Snyder’s head question
I've always been in the habit of breaking any sharp edges in the combustion chamber. My fear is, if there is someplace that can start to heat up and glow, it might cause a premature ignition.
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04-09-2023, 06:41 PM | #20 |
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Re: Snyder’s head question
I agree with that and I don't think there is any point getting too enthusiastic about it. Carbon build-up over time is likely to create more points for pre ignition IMO.
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