<div dir="ltr">Ray,<div><br></div><div>The 40320 A/B distributor is for an early standard BN1/2 with the lever advance. </div><div><br></div><div>The 40520A is the BN2 "M" distributor for a later car with the spring advance.</div><div><br></div><div>Cheers,</div><div><br></div><div>Curt</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Dec 23, 2023 at 9:11 AM Jake V <<a href="mailto:britishauto@gmail.com">britishauto@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">The 40520 is the M.<div dir="auto"><br></div><div dir="auto">Here's some info on ID'ing M cams beyond measuring the lobes.</div><div dir="auto"><br></div><div dir="auto">Jake</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Dec 23, 2023, 12:30 AM Ray Juncal via Healeys <<a href="mailto:healeys@autox.team.net" rel="noreferrer" target="_blank">healeys@autox.team.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:16px"><div dir="ltr"><div>Which distributor number is the "M"? also is there a number or other way to ID a 100-M camshaft? I should know this stuff but memory fades.<br></div><div dir="ltr">Thanks</div><div dir="ltr">Ray<br></div><div><br></div><div><br></div><div><img title="Inline image" alt="Inline image" style="max-width: 800px; width: 100%;"></div><br></div></div></div>_______________________________________________<br>
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