Subject: [Fot] TR3/4 offset head

From: Greg Blake via Fot <[email-masked]>
Date: Mon, 17 Oct 2022 20:44:43 -0500

I was reading some old info about offsetting the TR head for better breathing but was unable to find any good intel in the FOT archives on the topic. 

Who is currently doing this and have you seen a measurable difference in performance?  Also, what has it done to the life cycle on the head gasket?  I don’t want to trade a small or negligible performance gain for a maintenance problem. 

Thanks from a guy trying to catch faster cars

Sent from my iPhone
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From: GREGORY THOMPSON via Fot <[email-masked]>
Date: Tue, 18 Oct 2022 14:27:30 +0000 (UTC)

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Here is a thread from Triumph Experience. Motorsport Mickey did it beck in =
the 80's. I don't know if he is on FOT but maybe he should be. He has a wea=
lth of knowledge.
92mm pistons ?? : TR4 & TR4A Forum : The Triumph Experience

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92mm pistons ?? : TR4 & TR4A Forum : The Triumph Experience

Hi all, What does it take to install 92mm pistons in a TR4 block ? Does the=
 block itself need to be modified ? C...
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Greg Thompson=C2=A0=20

    On Monday, October 17, 2022 at 11:33:47 PM CDT, Greg Blake via Fot <fot=
@autox.team.net> wrote: =20
=20
 I was reading some old info about offsetting the TR head for better breath=
ing but was unable to find any good intel in the FOT archives on the topic.=
=20

Who is currently doing this and have you seen a measurable difference in pe=
rformance?=C2=A0 Also, what has it done to the life cycle on the head gaske=
t?=C2=A0 I don=E2=80=99t want to trade a small or negligible performance ga=
in for a maintenance problem.=20

Sent from my iPhone

digy.net

 =20
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f; color: rgb(29, 34, 40); max-width: 314px;">92mm pistons ?? : TR4 &amp; T=
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ion" style=3D"font-size: 12px; line-height: 16px; margin: 0px; color: rgb(1=
51, 158, 168);">Hi all, What does it take to install 92mm pistons in a TR4 =
block ? Does the block itself need to be modified ? C...</p></td></tr></tbo=
dy></table></td></tr></tbody></table></td></tr></tbody></table></a></div><d=
iv><br></div><div><br></div><br></div><div><br></div><div class=3D"ydpc9485=
73signature">Greg Thompson&nbsp;</div></div>
        <div><br></div><div><br></div>
       =20
        </div><div id=3D"ydp24b8dc82yahoo_quoted_6792499211" class=3D"ydp24=
b8dc82yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Monday, October 17, 2022 at 11:33:47 PM CDT, Greg Bl=
ake via Fot &lt;[email-masked]&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div dir=3D"ltr">I was reading some old info about off=
setting the TR head for better breathing but was unable to find any good in=
tel in the FOT archives on the topic. <br></div><div dir=3D"ltr"><br></div>=
<div dir=3D"ltr">Who is currently doing this and have you seen a measurable=
 difference in performance?&nbsp; Also, what has it done to the life cycle =
on the head gasket?&nbsp; I don=E2=80=99t want to trade a small or negligib=
le performance gain for a maintenance problem. <br></div><div dir=3D"ltr"><=
br></div><div dir=3D"ltr">Thanks from a guy trying to catch faster cars<br>=
</div><div dir=3D"ltr"><br></div><div dir=3D"ltr">Sent from my iPhone<br></=
div><div dir=3D"ltr">_______________________________________________<br></d=
iv><div dir=3D"ltr"><a href=3D"mailto:[email-masked]" rel=3D"nofollow" =
target=3D"_blank">[email-masked]</a><br></div><div dir=3D"ltr"><br></di=
v><div dir=3D"ltr"><a href=3D"http://www.fot-racing.com" rel=3D"nofollow" t=
arget=3D"_blank">http://www.fot-racing.com</a><br></div><div dir=3D"ltr"><b=
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