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Casting Block Numbers
Posted: Tue Jul 05, 2022 7:11 pm
by mini1973
Hi
I have been trying to research the casting numbers for Blocks, Cylinder Heads and Gearboxes.
Looked in the Original Mini Cooper and Cooper S book by John Parnell to no avail. Is this information in the book? Or is there a link on this site for this information?
Thank you in advance.
Re: Casting Block Numbers
Posted: Tue Jul 05, 2022 9:19 pm
by Peter Laidler
Have a look in the search facility. There are pages and pages of info re casting numbers and how to interpret what the configurations relate to
Re: Casting Block Numbers
Posted: Wed Jul 06, 2022 6:34 am
by mini1973
Peter Laidler wrote: ↑Tue Jul 05, 2022 9:19 pm
Have a look in the search facility. There are pages and pages of info re casting numbers and how to interpret what the configurations relate to
Thanks, I will try and have a search later.
Re: Casting Block Numbers
Posted: Wed Jul 06, 2022 7:51 am
by Spider
Re: Casting Block Numbers
Posted: Wed Jul 06, 2022 8:43 am
by mk1
1 12A497 998 thick deck pre A+
1 WFM1026 on front 998 A Plus (with WFM1026/4 on back)
1 AEG131 Cooper S 970
1 AEG151 Cooper S 1070
1 AEG312 Cooper S 1275 thin deck
1 AEG312& AEG634 Cooper S 1275 block stamping thick deck
1 12G1279 1275GT / 1275 no tappet chest pre A plus
1 WFM1024 on back 1275-A plus 5/8" oil filter pipe thread
1 WFM1024 1275-A plus 11/16" oil filter pipe thread
1 LCF103200 1275 A plus MPI
Re: Casting Block Numbers
Posted: Wed Jul 06, 2022 8:53 am
by mk1
Date codes on blocks read like this:
Assuming "S DD M Y" format of the block date code:
S = Shift. A=first, B=second
DD = one or two digit day-in-month
M=Month letter, see note below
Y=Year digit
So far, we have found photos/details of AEG312 blocks with all letters A through M except B,E,I.
I suspect letter "I" is skipped, so the resulting table would be:
A Jan
B Feb
C Mar
D Apr
E May
F June
G July
H Aug
J Sept
K Oct
L Nov
M Dec
Props to Paul Harris [TECH396] for the groundwork he did identifying sequences on other marques.
Re: Casting Block Numbers
Posted: Wed Jul 06, 2022 12:20 pm
by mini1973
mk1 wrote: ↑Wed Jul 06, 2022 8:53 am
Date codes on blocks read like this:
Assuming "S DD M Y" format of the block date code:
S = Shift. A=first, B=second
DD = one or two digit day-in-month
M=Month letter, see note below
Y=Year digit
So far, we have found photos/details of AEG312 blocks with all letters A through M except B,E,I.
I suspect letter "I" is skipped, so the resulting table would be:
A Jan
B Feb
C Mar
D Apr
E May
F June
G July
H Aug
J Sept
K Oct
L Nov
M Dec
Props to Paul Harris [TECH396] for the groundwork he did identifying sequences on other marques.
Thank you. A lot of research has gone into that list.
I am surprised that this information is not in the John Parnell book.
Kind Regards
Re: Casting Block Numbers
Posted: Wed Jul 06, 2022 12:26 pm
by mk1
It wasn't available when John wrote the book. It was only deciphered by our members iain1967s & TECH396 in the last year or so.
Re: Casting Block Numbers
Posted: Wed Jul 06, 2022 12:34 pm
by AndyPen
Apologies for my earlier post (now gone), but this was the link I thought I had posted - to earlier discussion on here
https://mk1-forum.net/viewtopic.php?f=3 ... 63601d8b01
Re: Casting Block Numbers
Posted: Wed Jul 06, 2022 12:41 pm
by mk1
Thanks for finding the original post Andy.
M
Re: Casting Block Numbers
Posted: Wed Jul 06, 2022 2:29 pm
by bubbacluby
mk1 wrote: ↑Wed Jul 06, 2022 8:53 am
Date codes on blocks read like this:
Assuming "S DD M Y" format of the block date code:
S = Shift. A=first, B=second
DD = one or two digit day-in-month
M=Month letter, see note below
Y=Year digit
So far, we have found photos/details of AEG312 blocks with all letters A through M except B,E,I.
I suspect letter "I" is skipped, so the resulting table would be:
A Jan
B Feb
C Mar
D Apr
E May
F June
G July
H Aug
J Sept
K Oct
L Nov
M Dec
Props to Paul Harris [TECH396] for the groundwork he did identifying sequences on other marques.
Here are some B's
Re: Casting Block Numbers
Posted: Wed Jul 06, 2022 4:20 pm
by 251 ENG
All 1071/970 blocks have it cast on front .
Early 1275 also on front then moved to backas in previous pictures
Re: Casting Block Numbers
Posted: Wed Jul 06, 2022 5:02 pm
by mini1973
Re: Casting Block Numbers
Posted: Wed Jul 06, 2022 5:06 pm
by mini1973
mk1 wrote: ↑Wed Jul 06, 2022 12:26 pm
It wasn't available when John wrote the book. It was only deciphered by our members iain1967s & TECH396 in the last year or so.
Re: Casting Block Numbers
Posted: Thu Jul 07, 2022 12:32 am
by iain1967s
Also recently
posted by NZmember is this comprehensive
MiniSpares page which has extensive cylinder head casting history, and includes an original BL document “Date Standard for Ferrous Castings” at the bottom which shows the same scheme was still being used into the 70s/80s.
Copy attached.
Re: Casting Block Numbers
Posted: Thu Jul 07, 2022 3:25 pm
by janerick3
When were the castings changed over to thick flanges?
I have a thin-flange block that appears to have a September 1967 casting date (engine is in the car so it is hard to read).
Re: Casting Block Numbers
Posted: Thu Jul 07, 2022 3:41 pm
by mk1
Sept 67 is the absolute last gasp of the thin flange block. I doubt there are any younger than that.
Re: Casting Block Numbers
Posted: Thu Jul 07, 2022 6:50 pm
by mini1973
iain1967s wrote: ↑Thu Jul 07, 2022 12:32 am
Also recently
posted by NZmember is this comprehensive
MiniSpares page which has extensive cylinder head casting history, and includes an original BL document “Date Standard for Ferrous Castings” at the bottom which shows the same scheme was still being used into the 70s/80s.
Copy attached.
Thanks for all the information everyone.
Anyone have a list of Gearbox casting numbers?
Re: Casting Block Numbers
Posted: Fri Jul 08, 2022 9:09 pm
by 251 ENG
Here is a late thin flange
Re: Casting Block Numbers
Posted: Sun Jul 10, 2022 10:33 am
by Nevsmini
Any info on the earliest thick flange block casting.