<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yiv0271995003"><div id="yui_3_16_0_ym19_1_1484140169127_3248"><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;" id="yui_3_16_0_ym19_1_1484140169127_3247"><div id="yiv0271995003yui_3_16_0_ym19_1_1484139081376_5891"><span id="yui_3_16_0_ym19_1_1484140169127_3246">As I plan for my MGB engine rebuild, I have asked this group for recommendations, and I have gotten some really helpful information. Some of it has prompted additional questions. I hope you do not feel I am taking advantage of this really helpful service, but I do have a couple of more questions, some of them follow-ups on earlier topics.</span></div><div id="yui_3_16_0_ym19_1_1484140169127_3424"><span><br clear="none"></span></div><div id="yui_3_16_0_ym19_1_1484140169127_3426"><div><span id="yui_3_16_0_ym19_1_1484140169127_3425">First, a number of people have talked about using higher compression pistons. Remember, my car has an 18GK engine, and the serial number is 243217. It was produced in 1971 and it appears that a lot of changes were taking place at that time (US safety and emission regulations?) Can anyone tell me where I can find higher compression pistons for this engine? I'm thinking somewhere in the 10:1 range.</span></div><div><span id="yui_3_16_0_ym19_1_1484140169127_3425"><br></span></div><div dir="ltr"><span id="yui_3_16_0_ym19_1_1484140169127_3425">It has been suggested that I look into SU 1 3/4" carburetors, instead of the 1 1/2" carbs currently on the car. Can anyone tell me where I can find an intake manifold for this conversion? The identifying feature is that the 1 1/2" carbs attach to the manifold with 2 studs, while the 1 3/4" carb used 4 studs for this attachment.</span></div><div dir="ltr"><span id="yui_3_16_0_ym19_1_1484140169127_3425"><br></span></div><div dir="ltr" id="yui_3_16_0_ym19_1_1484140169127_4483"><span id="yui_3_16_0_ym19_1_1484140169127_3425">Has anyone used Cometic gaskets. I have used them on my Triumphs, and they are fantastic. Does anyone know if they have a gasket available for the MGB?</span></div><div dir="ltr" id="yui_3_16_0_ym19_1_1484140169127_4484"><span id="yui_3_16_0_ym19_1_1484140169127_3425"><br></span></div><div dir="ltr" id="yui_3_16_0_ym19_1_1484140169127_4485"><span id="yui_3_16_0_ym19_1_1484140169127_3425">Thanks for any help you can give me, and I welcome any additional suggestions.<br></span></div></div><div class="yiv0271995003qtdSeparateBR" id="yui_3_16_0_ym19_1_1484140169127_3498"><br clear="none">Jack<br clear="none"></div></div></div></div><div class=".yiv0271995003yahoo_quoted" id="yui_3_16_0_ym19_1_1484140169127_3500"><div id="yiv0271995003yui_3_16_0_ym19_1_1484139081376_5912" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"><div id="yiv0271995003yui_3_16_0_ym19_1_1484139081376_5911" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1484140169127_3499"><br><br></div><div class="yiv0271995003yqt0213742976" id="yiv0271995003yqt20224"><div dir="ltr" id="yiv0271995003yui_3_16_0_ym19_1_1484139081376_5910"><font id="yiv0271995003yui_3_16_0_ym19_1_1484139081376_5914" size="2" face="Arial">----- Forwarded Message -----<br clear="none"> <b><span style="font-weight:bold;">From:</span></b> David Ambrose via Mgs <mgs@autox.team.net><br clear="none"> <b><span style="font-weight:bold;">To:</span></b> mgs@autox.team.net <br clear="none"> <b><span style="font-weight:bold;">Sent:</span></b> Tuesday, January 10, 2017 9:29 PM<br clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> Re: [Mgs] MGB Question<br clear="none"> </font> </div> <div class="yiv0271995003y_msg_container" id="yiv0271995003yui_3_16_0_ym19_1_1484139081376_5997"><br clear="none"><div id="yiv0271995003">
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<div id="yiv0271995003yui_3_16_0_ym19_1_1484139081376_5998">I installed a Kent fast road cam when I rebuilt my MGB engine. I
love that cam. The idle is a hair lumpier, but the midrange torque
is much improved, highway gas mileage improved too. <br clear="none">
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Cheers,<br clear="none">
Dave Ambrose<br clear="none">
<br clear="none">
<div class="yiv0271995003moz-cite-prefix">On 1/9/2017 2:11 PM, Charley &
Peggy Robinson via Mgs wrote:<br clear="none">
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<blockquote id="yiv0271995003yui_3_16_0_ym19_1_1484139081376_6000" type="cite">
<div id="yiv0271995003yui_3_16_0_ym19_1_1484139081376_5999">Doesn't look like the HC pistons I used are available now, at
least from Moss. Someone mentioned getting them from the UK.
You might pursue that. Have to know what size you need though,
as I'm sure you're aware. <br clear="none">
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<div>Look, do you really need 10:1 CR? Or a longer duration cam?
Do you plan to stand on it a lot or go for drives in the
countryside? There are trade-offs, y'know? <br clear="none">
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<div id="yiv0271995003yui_3_16_0_ym19_1_1484139081376_6001">CR<br clear="none">
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<div class="yiv0271995003moz-cite-prefix">On 1/9/2017 11:26 AM, Jack Wheeler
wrote:<br clear="none">
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<div>Good advice... Thanks. Do you know where high
compression pistons are available?</div>
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<div>Jack<br clear="none">
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