Yes, I believe that each half has it's own casting date. The odd one I see has different months. I greatly appreciate getting the casting dates and pairing numbers.
Yes, I believe that each half has it's own casting date. The odd one I see has different months. I greatly appreciate getting the casting dates and pairing numbers.
Porsche Historian, contact for Kardex & CoA-type Reports
Addicted since 1975, ESR mbr# 2200 to 2024 03
Researching Paint codes and Engine Build numbers
Better shots of the casting numbers:
1966 911 #304065 Irischgruen
Are these casting dates the same style and location on the magnesium cases?
There is also the number on the case for the intermediate shaft gear code. Are there any other markings of interest?
Porsche Historian, contact for Kardex & CoA-type Reports
Addicted since 1975, ESR mbr# 2200 to 2024 03
Researching Paint codes and Engine Build numbers
Well, I took and even closer look, cleaned the area and still found no date stamp on the case. Here are a couple of close up picks of the area. No stamp at all.
I did confirm the heads are stamped 64 11, which I take it they were cast in November 1964.
Brooke
1969 911 ST w/ 2.8SS
1973 911 RS tribute with 3.3 turbo
1970 914-6 w/ 2.2S (sold)
1972 BMW M2 (sold)
R Gruppe #338
S Reg # 855
Since this is an early engine, the possibility is that it preceded the use of the date stamp, or the date stamp is located elsewhere on the case. It would be useful for those with similar serial #'s to take a look and determine another location if it exists, or when the coding started. From the parting # there were already 550 unit sets machined and only 390 engines built.
Porsche Historian, contact for Kardex & CoA-type Reports
Addicted since 1975, ESR mbr# 2200 to 2024 03
Researching Paint codes and Engine Build numbers
It is surprising. Especially so since Porsche made their own engines and the 356 engines had a similar date code in a similar location and you found a date code on other part(s). I'd keep looking. Thanks.Originally Posted by davep
-Allen-
Engine number content guys, no worries,
Today was a great day. My good friend Richard, "304678" and I took apart my longblock "2.4" which was purchased along with an Alu engine (posted earlier in this thread). I was pleasantly surprised to find a very low hours RS P/C set! But, regarding date stamps, here's more proof it always must be there somewhere (Richard found it after much looking). The engine we took apart is an unnumbered 7R replacement case. So, I figured it to be for a 2.4 kit and, again, was suprised to find the 2.7 set. The heads and cams are from a circa late '73 CIS car. Anyway, here's where all the numbers are on a '79 manufactured replacment case. So, if a replacement case is stamped it with, say, a RS engine number and type number to make it look original, the date stamp would tell you more...than you might want to know! Thanks.
-Allen-
Good score! Also some great observations. You have to check ALL the numbers on a case to known what you really have. Knowing where to find all those numbers is half the battle. I hope that this thread helps to further the knowledge base.
Porsche Historian, contact for Kardex & CoA-type Reports
Addicted since 1975, ESR mbr# 2200 to 2024 03
Researching Paint codes and Engine Build numbers
The other day I saw this case:
3281184
901/14
14552
If I happen to see it again I will check for the case half matching numbers.
Richard
And Richard saw this too but didn't take the photos. With his help, much appreciated, it is now in my garage and ready to get running. After 15+ years plus but, thank goodness, this one is not seized (if you remember that!?)
6120631 911/51 pairing: 151; 4R case..date stamp to follow when we get it on the stand. Thanks.
-Allen-
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