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-   -   Nikasil or Alusil based on engine number? (http://forums.pelicanparts.com/porsche-911-technical-forum/878327-nikasil-alusil-based-engine-number.html)

RSSweden 08-10-2015 09:47 AM
Nikasil or Alusil based on engine number?
 
Anyone who knows if it's possible to make out if I have Nikasil or Alusil cylinders based on the engine number? The engine number is 911/92 / 6142169, a 1974 coupe delivered in November 1973.

Thanks!

Charles Freeborn 08-10-2015 12:55 PM
Maybe. I'd start with the Anderson Book.
https://books.google.com/books?id=nPp2_A2zez0C&hl=en"]https://books.google.com/books?id=nPp2_A2zez0C&hl=en

john walker's workshop 08-10-2015 02:29 PM
Count the fins. nikasil 11, alusil 10. niki cylinders are kind of gray, alusils are lighter.

Bob Kontak 08-10-2015 02:34 PM
Quote:
Originally Posted by john walker's workshop (Post 8747577)
Count the fins. nikasil 11, alusil 10. niki cylinders are kind of gray, alusils are lighter.
Here is an excerpt from Anderson's book.

https://books.google.com/books?id=rOKlQ0ZzL6cC&pg=PA68&lpg=PA68&dq=What+yea r+did+Porsche+use+alusil+cylinders?&source=bl&ots= ICipJJfifj&sig=CC392-OXmg3ssi15tctk_6BXEgM&hl=en&sa=X&ved=0CEUQ6AEwBWoV ChMI0afXusWfxwIVAs2ACh3hugN0#v=onepage&q=What%20ye ar%20did%20Porsche%20use%20alusil%20cylinders%3F&f =false



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