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Onceler Samba Member
Joined: May 28, 2010 Posts: 1647 Location: Indiana
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Posted: Wed Nov 13, 2019 8:55 pm Post subject: 94mm cut to length vs. std. 94mm |
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Any ideas why the head registers would be different between the 2?
I needed another set of pistons, so I went ahead and ordered a set of std. length p&c’s.
The cut to length versions measure 101.25mm diameter and std. length measure 100.85mm dia.
You can see the difference in this photo (cut to length on right):
_________________ 1972 Karmann Ghia |
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bugguy1967 Samba Member
Joined: January 16, 2008 Posts: 4341 Location: Los Angeles, CA 90016
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Posted: Wed Nov 13, 2019 10:53 pm Post subject: Re: 94mm cut to length vs. std. 94mm |
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You mean the head diameter? They're usually used for apps where people are running more cylinder pressure, so AA gave us some extra wall thickess. Make sure your head fits. _________________ "A petrol engine can start readily, run smoothly and give every appearance of being in good order, without necessarily being in good tune." - Colin Campbell, "The Sportscar Engine" |
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Onceler Samba Member
Joined: May 28, 2010 Posts: 1647 Location: Indiana
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Posted: Thu Nov 14, 2019 2:05 pm Post subject: Re: 94mm cut to length vs. std. 94mm |
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bugguy1967 wrote: |
You mean the head diameter? They're usually used for apps where people are running more cylinder pressure, so AA gave us some extra wall thickess. Make sure your head fits. |
Well that seams like a good idea, but slightly annoying that it’s not mentioned in any of the spec.’s I’m aware of _________________ 1972 Karmann Ghia |
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mark tucker Samba Member
Joined: April 08, 2009 Posts: 23937 Location: SHALIMAR ,FLORIDA
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Posted: Thu Nov 14, 2019 2:51 pm Post subject: Re: 94mm cut to length vs. std. 94mm |
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I wood prefur the thicker ones.... |
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Onceler Samba Member
Joined: May 28, 2010 Posts: 1647 Location: Indiana
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Posted: Thu Nov 14, 2019 6:33 pm Post subject: Re: 94mm cut to length vs. std. 94mm |
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Any issues with boring these heads out further? They are already broken through to the fin area.
_________________ 1972 Karmann Ghia |
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bugguy1967 Samba Member
Joined: January 16, 2008 Posts: 4341 Location: Los Angeles, CA 90016
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Posted: Fri Nov 15, 2019 2:01 pm Post subject: Re: 94mm cut to length vs. std. 94mm |
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You gotta do what you gotta do. It won't hurt anything. _________________ "A petrol engine can start readily, run smoothly and give every appearance of being in good order, without necessarily being in good tune." - Colin Campbell, "The Sportscar Engine" |
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Onceler Samba Member
Joined: May 28, 2010 Posts: 1647 Location: Indiana
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Posted: Fri Nov 15, 2019 5:41 pm Post subject: Re: 94mm cut to length vs. std. 94mm |
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bugguy1967 wrote: |
You gotta do what you gotta do. It won't hurt anything. |
I figured so, but thought I better ask the experts. Thanks _________________ 1972 Karmann Ghia |
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