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The engine I just tore down to rebuild is a 78sc. The cam numbers are as follows, 930 105 1487R
Hope this helps ya
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74 911s neverending story. two feet and a jetta for now. |
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03-04-2006, 09:36 PM
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Join Date: Jan 2004
Location: CT
Posts: 11,551
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Your cams are SC cams. It is unlikely that they have been reground. SC (CIS) cams do not have enough material on them to allow them to be reground without first welding them up.
You can check the cam profile by measuring the intake and exhaust lobes with a dial gage and comparing the results to the SC cam specs. Probably not necessary given that the cams are most likely not the culprit.
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Tom Butler 1973 RSR Clone 1970 911E 914-6 GT Recreation in Process |
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03-05-2006, 02:38 AM
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Location: Las Cruces, NM
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ok cool, i thought i'd ask anyhow
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2007 Mazda 3 hatch 1972 Porsche 914 roller with plenty of holes to fix 
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03-05-2006, 09:40 AM
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1974 Porsche 911S 1978 3.0 SC
