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gungadin's Avatar
 
Join Date: Jul 2006
Location: Portland Oregon
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engine # *6392956 someone?

This is in a '76S
My dads old car. Once a bad leaker but now dry???

Old 07-14-2006, 12:23 AM
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Looks like a '69S.
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Old 07-14-2006, 07:09 AM
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... or a '79 3.0 SC - Porsche in their wisdom used this same series of engine numbers for both years !
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Andy


M&W 904 ... now gone
GT-style 356C ... also gone
Old 07-14-2006, 08:24 AM
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Installed in a 76 car and no oil leaks I'd guess 1979 3.0.

Is it mag or aluminum?
We could use the designation number (930/??) to be certain.
This number is located on the engine case on the right side of the fan housing.

Case casting number will also tell us which one you have.
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Old 07-14-2006, 09:29 AM
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That number looks like 930-OS
Does that make it magnesium or aluminum?
Still a '79 3.0L?
Old 07-15-2006, 07:45 AM
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79 911 SC 3.0. Aluminum
This is a very nice up grade for a mid 70s 911.
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Old 07-15-2006, 08:09 AM
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More than likely 930/03 - that would concur with it being a '79 SC engine (aluminium crankcases).

930/05 is a Japanese-spec '79 SC engine (serial number would be 619XXXX).

930/06 is a California-spec version with serial number in the form: 659XXXX
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Andy


M&W 904 ... now gone
GT-style 356C ... also gone
Old 07-15-2006, 08:10 AM
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YOO DA Men!
laquer thinner/toothbrush....it is a "3"
Thanks so much for your help.
Old 07-15-2006, 12:21 PM
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I'm a huge fan of 1974-77 cars with an upgraded engine. These cars are so neglected and unwanted by the Porsche community for their 2.7 engine problems, that you rarely see too many these days. Installing a 3.0 solves 95% of the engine problems (replace head studs and install Carrera chain tensioners while you're at it), and really makes these narrow body cars sought after.

-Wayne

Old 07-16-2006, 10:46 PM
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