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| Registered Join Date: Feb 2006 
					Posts: 2
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				1977 2.7 911 barrel upgrade
			 
			just rebuilding my porsche 2.7lt motor just wondering wat are the maximum sized pistons and barrell i can use without machining the case thanks
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|  02-20-2006, 11:34 PM | 
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| Registered Join Date: Oct 2004 Location: S California 
					Posts: 7,986
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			Opening up the spigots on a 2.7 mag case is not really an option.  There is very little metal between the opening and the head studs.  You can go to 92mm and I think possible even 93mm (without modifying the case) however the cylinder walls get very thin.
		 
				__________________ 1970 911E Sportomatic Albert Blue 1971 911T Sunroof Coupe w/ Twin Plug 2.5 MFI 1973 911E Glacier Blue 1973 911E RSR Tribute Viper Green w/ 3.5 Twin Plug MFI | ||
|  02-21-2006, 09:57 AM | 
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