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Registered
Join Date: Feb 2003
Location: Petaluma - San Francisco Area
Posts: 555
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Cylinder Height
I am rebuilding my 2.7 and 2 of my cylinder on the same bank were damaged. The original cylinders are a 5 in height and I have a chance to buy 3 new cylinders the are 6's. Is it okay to have a bank of 5's and the other 6's?
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PorschePilot 74 911S Targa - High Quality 2.7 Rebuild and Full Body Restoration MID9 Member Beechcraft V-Tail Bonanza (Fly'n high and low) |
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09-11-2003, 08:19 PM
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Registered
Join Date: Jan 2002
Posts: 634
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Yes, it's okay. You just need each bank to have the same height cylinders.
-Rob 1980sc |
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09-12-2003, 06:24 AM
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Super Moderator
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You would also need the base gaskets to make up for the difference if the height between Left and Right weas significant. Otherwise you would have different deck heights and therefore compression ratios from L to R.
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Chris ---------------------------------------------- 1996 993 RS Replica 2023 KTM 890 Adventure R 1971 Norton 750 Commando Alcon Brake Kits |
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09-12-2003, 06:45 AM
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Registered
Join Date: Feb 2003
Location: Petaluma - San Francisco Area
Posts: 555
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Does anyone know what the difference in deck height is between a number 5 and 6 cylinder? Would I have to bring up the bank of number 5 cylinders to the same height of the 6’s, because of a compression differential?
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PorschePilot 74 911S Targa - High Quality 2.7 Rebuild and Full Body Restoration MID9 Member Beechcraft V-Tail Bonanza (Fly'n high and low) |
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09-12-2003, 08:38 AM
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1970 Porsche 911 S 
