<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><font size=3 face=Calibri><span style='font-size:12.0pt'> I recently picked up a Morgan Plus 4 with the original Standard Vanguard engine in it (similar to a TR2). The engine was pulled because of low oil pressure at hot idle. The original engine design has no cam bearings, just the cam turning iron on iron in the block. In time it wears and you get low oil pressure. I’ve been considering having the block line bored to take the replaceable TR3 cam bearings. Is there someone out there with a torn down TR3 block that can give me the measurements of the hole where we pull the rear three bearings in to? I have a couple of other blocks that I’ll take the measurements off of and compare before I go line boring my block.<o:p></o:p></span></font></p><p class=MsoNormal><font size=3 face=Calibri><span style='font-size:12.0pt'> TIA,<o:p></o:p></span></font></p><p class=MsoNormal><font size=3 face=Calibri><span style='font-size:12.0pt'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=3 face=Calibri><span style='font-size:12.0pt'> -Bill in Tehachapi, CA<o:p></o:p></span></font></p></div></body></html>