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--></style></head><body lang=EN-US link=blue vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Thanks Mark. I will do an actual measurement to confirm but wanted to get an idea of the compression ratio with the block decked and the stock head.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Harold<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='border:none;padding:0in'><b>From: </b><a href="mailto:ardmorebusiness@xtra.co.nz">Mark Donaldson</a><br><b>Sent: </b>Thursday, April 28, 2022 1:58 PM<br><b>To: </b><a href="mailto:manifold@telus.net">Harold Manifold</a>; <a href="mailto:healeys@autox.team.net">Ken Fleming via Healeys</a><br><b>Subject: </b>RE: [Healeys] Cylinder Head Chamber Volume</p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-NZ style='font-family:"Tahoma",sans-serif;color:#1F497D'>Correct, Harold. I think mine were actually 52.5 cc</span><span lang=EN-NZ><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-NZ style='font-family:"Tahoma",sans-serif;color:#1F497D'> </span><span lang=EN-NZ><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-NZ style='font-family:"Tahoma",sans-serif;color:#1F497D'>Mark</span><span lang=EN-NZ><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-NZ style='font-family:"Tahoma",sans-serif;color:#1F497D'>Ardmore, NZ</span><span lang=EN-NZ><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-NZ style='color:#1F497D'> </span><span lang=EN-NZ><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> Harold Manifold <manifold@telus.net> <br><b>Sent:</b> Friday, 29 April 2022 5:35 AM<br><b>To:</b> Ken Fleming via Healeys <healeys@autox.team.net><br><b>Subject:</b> [Healeys] Cylinder Head Chamber Volume<span lang=EN-NZ><o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-NZ> <o:p></o:p></span></p><p class=MsoNormal>Hello,<span lang=EN-NZ><o:p></o:p></span></p><p class=MsoNormal> <span lang=EN-NZ><o:p></o:p></span></p><p class=MsoNormal>I am in the final stages of an AH 3000 engine rebuild with some upgrades and would like to do a compression ratio check. I have all of the numbers needed except for the cylinder head chamber volume. A quick search online came up with 52cc’s. The valves were the same for all the Healey 3000 engines so the head volume should be the same. Would anyone be able to confirm if 52cc’s is a good number?<span lang=EN-NZ><o:p></o:p></span></p><p class=MsoNormal> <span lang=EN-NZ><o:p></o:p></span></p><p class=MsoNormal>Thanks,<span lang=EN-NZ><o:p></o:p></span></p><p class=MsoNormal> <span lang=EN-NZ><o:p></o:p></span></p><p class=MsoNormal>Harold<span lang=EN-NZ><o:p></o:p></span></p><p class=MsoNormal> <span lang=EN-NZ><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>