Subject: [Fot] TR4 Valves

From: Joe Boruch <[email-masked]>
Date: Sat, 15 Aug 2026 21:14:20 +0000 (UTC)

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As a result of my broken timing chain, all but one of the valves are bent. =
=C2=A0Since I still race SCCA, I need stock diameter (head diameter) valves=
. =C2=A0The stock diameter valves do not have the stems necked down for bet=
ter flow. =C2=A0When i built this head years ago I bought the oversized val=
ves with necked down stems and ground them down to stock diameter. =C2=A0
My question for this esteemed group is - Does someone make or sell stock di=
ameter valves with 5/15 inch stems that are necked down for better flow? =
=C2=A0I was thinking I might need to have Manley make a custom set?=C2=A0Jo=
eB
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<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false">As a result of my broken timing chain, all but one of the valves are bent. &nbsp;Since I still race SCCA, I need stock diameter (head diameter) valves. &nbsp;The stock diameter valves do not have the stems necked down for better flow. &nbsp;When i built this head years ago I bought the oversized valves with necked down stems and ground them down to stock diameter. &nbsp;</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">My question for this esteemed group is - Does someone make or sell stock diameter valves with 5/15 inch stems that are necked down for better flow? &nbsp;I was thinking I might need to have Manley make a custom set?&nbsp;</div><div dir="ltr" data-setdir="false">JoeB</div></div></body></html>
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_______________________________________________
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Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot

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From: Joe Boruch <[email-masked]>
Date: Mon, 17 Aug 2026 22:24:00 +0000 (UTC)

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 As a result of my broken timing chain, all but one of the valves are bent.=
 =C2=A0Since I still race SCCA, I need stock diameter (head diameter) valve=
s. =C2=A0The stock diameter valves do not have the stems necked down for be=
tter flow. =C2=A0When i built this head years ago I bought the oversized va=
lves with necked down stems and ground them down to stock diameter. =C2=A0

eB =20
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<html><head></head><body><div class=3D"ydp99eb7ee7yahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px=
;"><div></div>
        <div><span style=3D"color: rgb(38, 40, 42);">As a result of my brok=
en timing chain, all but one of the valves are bent. &nbsp;Since I still ra=
ce SCCA, I need stock diameter (head diameter) valves. &nbsp;The stock diam=
eter valves do not have the stems necked down for better flow. &nbsp;When i=
 built this head years ago I bought the oversized valves with necked down s=
tems and ground them down to stock diameter. &nbsp;</span><br></div></div><=
div id=3D"ydp7377a1d0yahoo_quoted_7435424244" class=3D"ydp7377a1d0yahoo_quo=
ted"><div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, sans-ser=
if;font-size:13px;color:#26282a;"><div><div id=3D"ydp7377a1d0yiv1533410920"=
><div style=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;fon=
t-size:13px;" class=3D"ydp7377a1d0yiv1533410920yahoo-style-wrap"><div dir=
=3D"ltr"><br></div><div dir=3D"ltr">My question for this esteemed group is =
- Does someone make or sell stock diameter valves with 5/15 inch stems that=
 are necked down for better flow? &nbsp;I was thinking I might need to have=
 Manley make a custom set?&nbsp;</div><div dir=3D"ltr">JoeB</div></div></di=
v></div>
            </div>
        </div></body></html>
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