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Join Date: Jul 2003
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"S" cams in 4-bearing?

Are new early S cams (pre-73) available in 4-bearing from Porsche? If so, what are the part numbers?

I'd also like to know the part numbers for original 3-bearing ones.

TIA

Last edited by blue72s; 12-03-2003 at 10:41 AM..
Old 12-03-2003, 09:20 AM
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call webcam and have them do up some 4 bearing with S grind for you. or if you already have early S cams, use 3 bearing cam towers on whatever engine you build.
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Old 12-03-2003, 01:20 PM
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The part numbers should be in the Engine Rebuild book's appendix.

It's almost easier to run the 3-bearing cam towers instead of the 4-bearing ones - there is no real known cause of failure for the 3-bearing ones...

-Wayne
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Old 12-03-2003, 01:54 PM
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