<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><br><br><div dir="ltr">Sent from my iPhone</div><div dir="ltr"><br><blockquote type="cite">On Apr 29, 2022, at 9:17 PM, Alan Seigrist via Healeys <healeys@autox.team.net> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr"><div dir="ltr">I put 40 over / 5 ring pistons on my BJ8 - 100K miles later the car burns no oil & hone is as good as the day it was machined.... so I do prefer that it doesn't eat any oil. I am not averse to putting all 5 on if you can.<div><br></div><div>Best,</div><div><br></div><div>Alan</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Apr 30, 2022 at 1:11 AM Henry G Leach via Healeys <<a href="mailto:healeys@autox.team.net">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>The way I understand it, is today its all about friction. Many of the modern day pistons are three ring only. In the old days we needed all the squeeze we could get to keep oil out of the combustion. With todays machining capabilities, tolerances are so close that its not as much an issue as in the past. If you want less drag on your engine you can leave out the oil control set, but you may get some blow by on these old iron clunkers. <div><br></div><div>I tend to follow the proper parts assembly, so that if there are five slots I fill them with 5 rings. My NOS replacement .020 Mahle pistons had 4 and a matched set of Grant rings fit perfect. No blowby and good compression. Hank<br><br><div></div><p><br></p></div></div>
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