Subject: Re: [Fot] GT6 cylinder head

From: Anthony Parker via Fot <[email-masked]>
Date: Thu, 4 Sep 2025 14:15:13 +0000

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3.4"

________________________________
From: Fot <[email-masked]> on behalf of tom strange via Fot <fo=
[email-masked]>
Sent: Thursday, September 4, 2025 9:21 AM
To: FoTTriumph <[email-masked]>
Subject: [Fot] GT6 cylinder head

What is the stock thickness of a late cylinder head?

&  (just in case) does anyone have a decent engine they would sell? Could b=
e stock, up to "mild" race.

Thanks in advance
Tom
#59 Red

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<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" st=
yle=3D"font-size:11pt" color=3D"#000000"><b>From:</b> Fot &lt;fot-bounces@a=
utox.team.net&gt; on behalf of tom strange via Fot &lt;[email-masked]&g=
t;<br>
<b>Sent:</b> Thursday, September 4, 2025 9:21 AM<br>
<b>To:</b> FoTTriumph &lt;[email-masked]&gt;<br>
<b>Subject:</b> [Fot] GT6 cylinder head</font>
<div>&nbsp;</div>
</div>
<div>
<div dir=3D"auto">What is the stock thickness of a late cylinder head?
<div dir=3D"auto"><br>
</div>
<div dir=3D"auto">&amp;&nbsp; (just in case) does anyone have a decent engi=
ne they would sell? Could be stock, up to &quot;mild&quot; race.</div>
<div dir=3D"auto"><br>
</div>
<div dir=3D"auto">Thanks in advance</div>
<div dir=3D"auto">Tom</div>
<div dir=3D"auto">#59 Red</div>
</div>
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_______________________________________________
[email-masked]

http://www.fot-racing.com

Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot

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From: "JS Performance Motoring, LLC via Fot" <[email-masked]>
Date: Thu, 4 Sep 2025 12:37:42 -0400

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Tom,
         I believe the GT6+ heads (9.2:1 compression) started at 3.30"
thick, and the MK3 (8.0:1) heads were about 3.40".

I've heard some of the MK3's came with an even thicker TR6 head, and domed
pistons.  I've not had one of these in front of me to confirm.

JS Performance Motoring, LLC
440.984.7720
[email-masked]
www.jspmparts.com
https://www.facebook.com/JSPerformanceMotoring/

On Thu, Sep 4, 2025 at 10:06=E2=80=AFAM tom strange via Fot <[email-masked]=
.net>
wrote:

> &  (just in case) does anyone have a decent engine they would sell? Could
> be stock, up to "mild" race.
>
> Thanks in advance
> Tom
> #59 Red
> Donate: http://www.team.net/donate.html
> Unsubscribe/Manage <http://www.team.net/pipermail/fotUnsubscribe/Manage>:
> http://autox.team.net/mailman/options/fot/[email-masked]
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<div dir=3D"ltr"><div>Tom,</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0I be=
lieve the GT6+ heads (9.2:1 compression) started at 3.30&quot; thick, and t=
he MK3 (8.0:1) heads were about 3.40&quot;.=C2=A0 =C2=A0=C2=A0</div><div><b=
r></div><div>I&#39;ve heard some of the MK3&#39;s came with an even thicker=
 TR6 head, and domed pistons.=C2=A0 I&#39;ve not had one of these in front =
of me to confirm.</div><div><br></div><div><br></div><div><div dir=3D"ltr" =
class=3D"gmail_signature" data-smartmail=3D"gmail_signature"><div dir=3D"lt=
r"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D=
"ltr"><div><span></span><span></span>JS Performance Motoring, LLC<br></div>=
<div>440.984.7720</div><div><a href=3D"mailto:[email-masked]=
om" target=3D"_blank">[email-masked]</a><br></div><div><a =
href=3D"http://www.jspmparts.com" target=3D"_blank">www.jspmparts.com</a></=
div><div><a href=3D"https://www.facebook.com/JSPerformanceMotoring/" target=
=3D"_blank">https://www.facebook.com/JSPerformanceMotoring/</a><br></div></=
div></div></div></div></div></div></div></div></div><br></div><br><div clas=
s=3D"gmail_quote gmail_quote_container"><div dir=3D"ltr" class=3D"gmail_att=
r">On Thu, Sep 4, 2025 at 10:06=E2=80=AFAM tom strange via Fot &lt;<a href=
=3D"mailto:[email-masked]">[email-masked]</a>&gt; wrote:<br></div><=
blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-l=
eft:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"auto">What is =
the stock thickness of a late cylinder head?<div dir=3D"auto"><br></div><di=
v dir=3D"auto">&amp;=C2=A0 (just in case) does anyone have a decent engine =
they would sell? Could be stock, up to &quot;mild&quot; race.</div><div dir=
=3D"auto"><br></div><div dir=3D"auto">Thanks in advance</div><div dir=3D"au=
to">Tom</div><div dir=3D"auto">#59 Red</div></div>
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From: Mark Bradakis via Fot <[email-masked]>
Date: Thu, 4 Sep 2025 14:22:40 -0600

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Here's some info I have, some from direct measurements, some from 
various books and such.

mjb.

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