[Spridgets] 948 question

[HealeyRick]

Chuck,

I had flat-top pistons with a stock head in my 948 bugeye. Compression
ratio was 10.5:1.  Start looking for some race gas.

Rick

On Tue, Oct 8, 2024 at 7:52 PM Mark Haynes via Spridgets <
spridgets at autox.team.net> wrote:

> The 12A185 and the 12A629 were the original 948 castings, strangely, the
> Cooper S used a 185 casting as well, but it was quite modified for that
> application.
>
> On Tue, Oct 8, 2024, 1:21 PM AOL Mail Update (Terms & Policy) <
> crusaderchuck55 at aol.com> wrote:
>
>> 12A185 is the casting number...
>> Chuck
>>
>> On Monday, October 7, 2024 at 07:56:23 PM EDT, Mark Haynes <
>> 220caribou at gmail.com> wrote:
>>
>>
>> Hi Chuck,
>> What's the head casting#?The flattop pistons are a good compression ratio
>> upgrade, especially with a skimmed, ported 1098 big valve head (12G206,
>> 12G209)
>> [image: Error Icon]
>> Delivery incomplete
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>>
>>
>> ---------- Forwarded message ----------
>> From: Mark Haynes <220caribou at gmail.com>
>> To: Spridgets List <spridgets at autox.team.net>
>> Cc:
>> Bcc:
>> Date: Sun, 6 Oct 2024 14:36:49 -0600
>> Subject: Re:A 948 quetion
>> ----- Message truncated -----
>>
>> ------------------------
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