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Non-matching engine in the '74 Carrera
Hi folks - on the 1974 Carrera Targa the engine number in the car is *6342026*.
Going off an engine number post from Grady from years ago that suggests this current engine may not be what she was born with? OR - since the engines for 1974 weren't really different between "regular" and Carrera cars in the USA - is that inconclusive? Know ultimately I need to order a COA but if I can determine is wrong for sure that seems tom be worth knowing. I bought this to use and enjoy, so not super hung up about it. Thanks! --------- 6 = Engine design, 6-cylinder engine X = numbers 1-7 (see list below) 5 = Model year 1975 xxxx = Sequential serial number usually starting with 0001. Exceptions: Starting with 9001 = engine for Sportomatic. X = 1, 911, Type 911/41, (or Type 911/46 for Sportomatic) X = 3, 911S, Type 911/42, (or Type 911/47 for Sportomatic) X = 4, 911S/Carrera USA, Type 911/43, (or Type 911/48 for Sportomatic) X = 5, 911S/Carrera California, Type 911/44, (or Type 911/49 for Sportomatic) X = 6, Carrera 2.7 (MFI), Type 911/83 X = 7, Turbo 3.0, Type 930/50
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1967 912 (now w/ 50% fewer random holes in it) 911 w/ 3.2 1974 914 (3.2L swap underway) 1984 928s (S4 engine and suspension), 1987 928S4 |
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09-08-2021, 12:01 PM
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,481
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More important would be the internal spec number. IE 911/8x on the flat to right of fan.
Bruce |
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09-08-2021, 03:53 PM
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gearhead
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,539
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Should start 644 for 1974 US Carrera.
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09-08-2021, 04:18 PM
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Thanks Bruce, will check that.
Matt - that is what my decoding suggested as well. It is interesting that even though I belive the engines were mechanically identical they gave the US Carrera a different engine number. Any ideas why? Appreciate the responses.
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1967 912 (now w/ 50% fewer random holes in it) 911 w/ 3.2 1974 914 (3.2L swap underway) 1984 928s (S4 engine and suspension), 1987 928S4 |
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09-08-2021, 04:28 PM
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Registered
Join Date: Jan 2003
Location: Burford, ON, Canada
Posts: 2,319
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HUH?
for 1974 the 911S and Carrera had the same engines in North America: 911/93 from 6340001 Manual 911/98 from 6349001 Sportomatic
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Keeper of 356, 911, 912 & 914 databases; source for Kardex and CoA-type reports; email for info Researching 356, 911, 912 & 914 Paint codes, Engine #'s and Transmission #'s Addicted since 1975 |
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09-08-2021, 06:21 PM
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My understanding is that the Carrera's used for the same engines but the information from Grady indicates that the Carrera models got a different engine code, not sure why since they were the same.
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1967 912 (now w/ 50% fewer random holes in it) 911 w/ 3.2 1974 914 (3.2L swap underway) 1984 928s (S4 engine and suspension), 1987 928S4 Last edited by tdskip; 09-09-2021 at 03:01 AM.. |
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09-08-2021, 06:24 PM
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Good morning, what I found over my morning coffee is interesting. Did some digging this morning via auctions and what I found seems to suggest that there were at least some real 1974, COA confirmed, that had 634xxxx engine numbers. Actually every single 1974 I found on BAT with a matching COA was a 634xxxx.
1974 Carrera; 6340385 (COA confirmed) https://bringatrailer.com/listing/1974-porsche-911-carrera-coupe-6/ 1974 Carrera; 6340456 (COA confirmed) https://bringatrailer.com/listing/1974-porsche-911-carrera-coupe-4/ 1974 Carrera;6341389 (COA confirmed) https://bringatrailer.com/listing/1974-porsche-carrera-18/ 1974 Carrera; 6341584 (COA confirmed) https://bringatrailer.com/listing/1974-porsche-carrera-10/ 1974 Carrera; 6340195 (COA confirmed) https://bringatrailer.com/listing/1974-porsche-911-carrera-targa-3/ 1974 Carrera;6340733 (COA confirmed) https://bringatrailer.com/listing/1974-porsche-carrera-8/ 1974 Carrera; 6340508 (COA confirmed) https://bringatrailer.com/listing/1974-porsche-carrera-3/ 1974 Carrera; 6342740 (COA confirmed) https://bringatrailer.com/listing/1974-porsche-carrera-2/ 1974 Carrera; 6342377 (COA confirmed) https://bringatrailer.com/listing/1974-porsche-911-carrera/ 1974 Carrera; 6341747 (COA confirmed) https://bringatrailer.com/listing/1974-porsche-911-12/
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1967 912 (now w/ 50% fewer random holes in it) 911 w/ 3.2 1974 914 (3.2L swap underway) 1984 928s (S4 engine and suspension), 1987 928S4 |
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09-09-2021, 03:32 AM
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1975 cars seem to be 645xxxx
1975 Carrera, 6451700 (claimed matching) https://bringatrailer.com/listing/1975-porsche-911-carrera-targa-2/ 1975 Carrera, 6450163 ( COA matching) https://bringatrailer.com/listing/1975-porsche-911-carrera-15/ 1975 Carrera; 6450824 (COA matching) https://bringatrailer.com/listing/1975-porsche-911-carrera-14/ 1975 Carrera; 6451664 (COA matching) https://www.pcarmarket.com/auction/1975-porsche-911-carrera-coupe-1/
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1967 912 (now w/ 50% fewer random holes in it) 911 w/ 3.2 1974 914 (3.2L swap underway) 1984 928s (S4 engine and suspension), 1987 928S4 |
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09-09-2021, 03:48 AM
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gearhead
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,539
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My apologies for adding to your confusion. Dave is right, as usual. I took the decoder you used, and just used it. However, that's for 1975 only. It's not the same decoder for 1974.
1974 only had 2 US specs with digit 2 being a 1 for a 911 normal and a 3 for an S or Carrera.
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1974 914 Bumble Bee 2009 Outback XT 2008 Cayman S shop test Mule 1996 WRX V-limited 450/1000 |
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09-09-2021, 05:03 AM
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Thanks for the follow up, and looks like I did (as I initially thought) buy a correct range engine number. Phew.
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1967 912 (now w/ 50% fewer random holes in it) 911 w/ 3.2 1974 914 (3.2L swap underway) 1984 928s (S4 engine and suspension), 1987 928S4 |
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09-09-2021, 05:14 AM
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Registered
Join Date: Jan 2003
Location: Burford, ON, Canada
Posts: 2,319
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The North American Carrera in 1974 could not get the MFI engine of the Euro Carrera's and so had to settle for a plain 911S engine. The North America spec for engines changed to CIS on Jan 1, 1973
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Keeper of 356, 911, 912 & 914 databases; source for Kardex and CoA-type reports; email for info Researching 356, 911, 912 & 914 Paint codes, Engine #'s and Transmission #'s Addicted since 1975 |
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09-09-2021, 07:17 AM
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Registered
Join Date: Jan 2011
Location: Gulf Coast FL
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So it is a 911/42 then? You keeping us in suspense?
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09-09-2021, 07:45 AM
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Quote:
Will pull that number and report back, really needed get a path for the engine coming out. If it wasn't number matching then I was going to be rebuilt and go into a 914. Thanks for the response!
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1967 912 (now w/ 50% fewer random holes in it) 911 w/ 3.2 1974 914 (3.2L swap underway) 1984 928s (S4 engine and suspension), 1987 928S4 |
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09-09-2021, 09:01 AM
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