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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=E2=80=AFPM Mark Haynes via Spridgets <
spridgets@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=E2=80=AFPM AOL Mail Update (Terms & Policy) <
> crusaderchuck55@aol.com> wrote:
>
>> 12A185 is the casting number...
>> Chuck
>>
>> On Monday, October 7, 2024 at 07:56:23 PM EDT, Mark Haynes <
>> 220caribou@gmail.com> wrote:
>>
>>
>> Hi Chuck,
>> What's the head casting#?The flattop pistons are a good compression rati=
o
>> upgrade, especially with a skimmed, ported 1098 big valve head (12G206,
>> 12G209)
>> [image: Error Icon]
>> Delivery incomplete
>> There was a temporary problem delivering your message to
>> *spridgets@autox.team.net*. Gmail will retry for 47 more hours. You'll
>> be notified if the delivery fails permanently.
>> The response from the remote server was:
>>
>> 452 4.3.4 Message size exceeds fixed limit
>>
>>
>>
>> ---------- Forwarded message ----------
>> From: Mark Haynes <220caribou@gmail.com>
>> To: Spridgets List <spridgets@autox.team.net>
>> Cc:
>> Bcc:
>> Date: Sun, 6 Oct 2024 14:36:49 -0600
>> Subject: Re:A 948 quetion
>> ----- Message truncated -----
>>
>> ------------------------
>
> spridgets@autox.team.net
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<div dir=3D"ltr">Chuck,<div><br></div><div>I had flat-top pistons with a st=
ock head in my 948 bugeye. Compression ratio was 10.5:1.=C2=A0 Start lookin=
g for some race gas.</div><div><br></div><div>Rick</div></div><br><div clas=
s=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, Oct 8, 2024=
at 7:52=E2=80=AFPM Mark Haynes via Spridgets <<a href=3D"mailto:spridge=
ts@autox.team.net">spridgets@autox.team.net</a>> wrote:<br></div><blockq=
uote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1p=
x solid rgb(204,204,204);padding-left:1ex"><p dir=3D"ltr">The 12A185 and th=
e 12A629 were the original 948 castings, strangely, the Cooper S used a 185=
casting as well, but it was quite modified for that application. </p>
<br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue=
, Oct 8, 2024, 1:21=E2=80=AFPM AOL Mail Update (Terms & Policy) <<a =
href=3D"mailto:crusaderchuck55@aol.com"; target=3D"_blank">crusaderchuck55@a=
ol.com</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"m=
argin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left=
:1ex"><div><div style=3D"font-family:"Helvetica Neue",Helvetica,A=
rial,sans-serif;font-size:16px"><div></div>
<div>12A185 is the casting number...</div><div>Chuck</div><div><br>=
</div>
=20
<div id=3D"m_-5873631820652240013m_-7624454574237078166ydpff62e8ddy=
ahoo_quoted_8844829322">
<div style=3D"font-family:"Helvetica Neue",Helvetica,=
Arial,sans-serif;font-size:13px;color:rgb(38,40,42)">
=20
<div>
On Monday, October 7, 2024 at 07:56:23 PM EDT, Mark=
Haynes <<a href=3D"mailto:220caribou@gmail.com"; rel=3D"noreferrer" targ=
et=3D"_blank">220caribou@gmail.com</a>> wrote:
</div>
<div><br></div>
<div><br></div>
=20
=20
<div><div id=3D"m_-5873631820652240013m_-762445457423707816=
6ydpff62e8ddyiv8413766242"><div><div style=3D"font-size:12.8px"><div style=
=3D"min-height:90px">Hi Chuck,=C2=A0</div><div style=3D"min-height:90px">Wh=
at's the head casting#?The flattop pistons are a good compression ratio=
upgrade, especially with a skimmed, ported 1098 big valve head (12G206, 12=
G209)</div><div style=3D"min-height:502px"></div></div><div style=3D"font-s=
ize:12.8px"><div style=3D"min-height:91px"></div><div style=3D"width:328px;=
margin:16px 0px"><div><div><table cellpadding=3D"0" cellspacing=3D"0" style=
=3D"padding-top:32px;background-color:rgb(255,255,255)"><tbody><tr><td><tab=
le cellpadding=3D"0" cellspacing=3D"0"><tbody><tr><td style=3D"max-width:56=
0px;padding:24px 24px 32px;background-color:rgb(250,250,250);border:1px sol=
id rgb(224,224,224);border-radius:2px"><img width=3D"72" height=3D"72" alt=
=3D"Error Icon" style=3D"padding: 0px 24px 16px 0px; float: left;"><table s=
tyle=3D"min-width:272px;padding-top:8px"><tbody><tr><td><h2 style=3D"font-s=
ize:20px;color:rgb(33,33,33);margin:0px">Delivery incomplete</h2></td></tr>=
<tr><td style=3D"padding-top:20px;color:rgb(117,117,117);font-size:16px">Th=
ere was a temporary problem delivering your message to=C2=A0<a style=3D"col=
or:rgb(33,33,33)" rel=3D"noreferrer"><b>spridgets@autox.team.net</b></a>. G=
mail will retry for 47 more hours. You'll be notified if the delivery f=
ails permanently.</td></tr></tbody></table></td></tr></tbody></table></td><=
/tr><tr style=3D"border:none;width:328px"><td align=3D"left" style=3D"paddi=
ng:48px 10px">The response from the remote server was:<br><p style=3D"font-=
family:monospace">452 4.3.4 Message size exceeds fixed limit</p></td></tr><=
/tbody></table></div><br><br><br>---------- Forwarded message ----------<br=
>From:=C2=A0Mark Haynes <<a href=3D"mailto:220caribou@gmail.com"; style=
=3D"text-decoration-line:none;color:rgb(66,133,244)" rel=3D"nofollow norefe=
rrer" target=3D"_blank">220caribou@gmail.com</a>><br>To:=C2=A0Spridgets =
List <<a href=3D"mailto:spridgets@autox.team.net"; style=3D"text-decorati=
on-line:none;color:rgb(66,133,244)" rel=3D"nofollow noreferrer" target=3D"_=
blank">spridgets@autox.team.net</a>><br>Cc:=C2=A0<br>Bcc:=C2=A0<br>Date:=
=C2=A0Sun, 6 Oct 2024 14:36:49 -0600<br>Subject:=C2=A0Re:A 948 quetion<br>-=
---- Message truncated -----</div></div><div style=3D"min-height:0px"></div=
></div><br></div>
</div></div>
</div>
</div></div></div></blockquote></div>
------------------------<br>
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et=3D"_blank">http://www.team.net/donate.html</a><br>
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Archive: <a href=3D"http://www.team.net/pipermail/spridgets"; rel=3D"norefer=
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ets/healeyrik@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.=
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</blockquote></div>
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