<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr">The number cast into my head is 302137, is that the part number? Engine number: TS75131E. </div><div dir="ltr">Bill B</div><div dir="ltr"><br>On Nov 26, 2018, at 6:40 PM, Dave <<a href="mailto:dlhogye@comcast.net">dlhogye@comcast.net</a>> wrote:<br><br></div><div dir="ltr"><meta http-equiv="content-type" content="text/html; charset=utf-8"><div>I have this booklet that was published by the factory and later reprinted by TRF, describing the different cylinder head configurations fitted up to TS13052E in 1957. The Le Mans heads are rare.</div><div>Dave H.</div><div id="AppleMailSignature"><image2.JPG><br><br>Sent from my iPad</div><div><br>On Nov 26, 2018, at 1:34 PM, wbeech <<a href="mailto:wbeech@flash.net">wbeech@flash.net</a>> wrote:<br><br></div><blockquote type="cite"><div><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"><meta name="Generator" content="Microsoft Word 15 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--><div class="WordSection1"><p class="MsoNormal"><span style="color:#1F497D">Andrew,<o:p></o:p></span></p><p class="MsoNormal"><span style="color:#1F497D">TeriAnn’s web site give the differences between the head designs, this should help answer your question:<o:p></o:p></span></p><p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span style="color:#1F497D"><a href="http://www.tr3a.info/FAQ_heads.htm">http://www.tr3a.info/FAQ_heads.htm</a><o:p></o:p></span></p><p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span style="color:#1F497D">Bill B<o:p></o:p></span></p><p class="MsoNormal"><span style="color:#1F497D">TS30800L<o:p></o:p></span></p><p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p><div><div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b>From:</b> Triumphs [<a href="mailto:triumphs-bounces@autox.team.net">mailto:triumphs-bounces@autox.team.net</a>] <b>On Behalf Of </b>Andrew Uprichard<br><b>Sent:</b> Monday, November 26, 2018 1:15 PM<br><b>To:</b> <a href="mailto:triumphs@autox.team.net">triumphs@autox.team.net</a><br><b>Subject:</b> [TR] TR cylinder heads<o:p></o:p></p></div></div><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal"><span style="font-family:"Times New Roman",serif">When it comes to the 4-cylinder TR models, I am aware of four variations on cylinder head design: the original low-port TR2 head, the “le Mans” head which was a variation on the low port design, the high port head which came with most of the TR3s and the TR4 head with the smaller intake aperture.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Times New Roman",serif"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-family:"Times New Roman",serif">But someone was talking to me the other day about a variation in the high port TR3 head. According to this guy, there was a variation in the thermostat housing, some of which were more sloping than rounded. He claimed the sloped design was more attractive as it lended itself to more shaving and thus a better, high compression engine.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Times New Roman",serif"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-family:"Times New Roman",serif">I must admit I had never heard about this. I have three heads sitting in my barns and all have what appears to be the same, rounded underneath to the thermostat housing.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Times New Roman",serif"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-family:"Times New Roman",serif">Has anyone heard of this?<br><br>Andrew Uprichard<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Times New Roman",serif">Jackson, Michigan<o:p></o:p></span></p></div></div></blockquote><blockquote type="cite"><div><span>** <a href="mailto:triumphs@autox.team.net">triumphs@autox.team.net</a> **</span><br><span></span><br><span>Donate: <a href="http://www.team.net/donate.html">http://www.team.net/donate.html</a></span><br><span>Archive: <a href="http://www.team.net/pipermail/triumphs">http://www.team.net/pipermail/triumphs</a> <a href="http://www.team.net/archive">http://www.team.net/archive</a></span><br><span></span><br><span>Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/triumphs/dlhogye@comcast.net">http://autox.team.net/mailman/options/triumphs/dlhogye@comcast.net</a></span><br></div></blockquote></div></body></html>