Thanks ford3000gt. Your information was very useful. So much so that I think I have nutted this out.
 For anyone else interested in identifying their Pinto blocks, this is how it's done. Sources for this information were gathered from the following links. I have simply consolidated what I have found. 
http://www.fordaustraliaforums.com/forum/showthread.php?28968-vin-number-rs2000&p=265249&viewfull=1#post265249http://www.burtonpower.com/tuning-guides/tuning-guide-pages/ford-manufacture-dates.htmlhttp://www.classic-ford.o...9558&mpage=2#69539http://www.fordcapriforum.com/forum/viewtopic.php?t=32460#p214389 The information in the 1st link is listed below verbatim. 
The grid below it I created myself by consolidating the information in the 2nd and 3rd links. 
The 4th link details how the date that the block was cast can be determined. 
Pinto engines were available beyond 1981 in Australia but I have been unable to find any information of the codes used beyond 1981 so I have not speculated on their values and have not included them in the grid. Anyone knowing this information please let me know and I will update this post.
(Thanks to ford300gt - ...not just for Pinto engines/Escorts or Cortinas, the same works for Capris, using Kent  and Essex engines, but only from around the middle of 1970....  The whole thing changed again in 1981 when we went to the 17 digit VIN, universally used around the world from 1 January, 1981. Cheers, Terry) Hope that all makes sense. 
Anyway... 
PINTO ENGINE NUMBER DECODING  As a Pinto shares its I.D. number with the vehicle's chassis number, these will work fine: 
 The VIN on the engine or car will be 6 characters long, for example, JG63UM or AL1JYM. These are decoded as follows; 
 First character = Product source.
 A = USA, C = UK, J = Australia and S = Japan. Am not sure what U is, could be Thailand, Korea or the likes. At any rate, this code shows up for the Laser’s, Meteor’s and Telstar’s. 
 Second character = Assembly plant.
 G = Broadmeadows - (Passenger), L = Broadmeadows – (Truck), H = Brisbane and K = Sydney 
 3rd & 4th characters = Body Series
 See below 
 5th & 6th characters = year and month of production respectively. These do not always work for the Escort's in regards to the month. 
(Refer to grid below)  Therefore;
 A = USA source 
 L = Assembled at Broadmeadows Truck plant
 1J = F100 4x2
 Y = 1981
 M = March 
 Typically, most A and C sourced cars came in the form of parts manufactured overseas and then fully assembled here in Australia e.g. F Series, Escorts & Cortina’s. 
 The complete list of Body Series codes are shown below.
 1C = Transit 125 End/Side Load Van
 1D = Transit Sundowner Van 
 2C = Transit 125 Kombi
 2D = Transit 175 Side Load Van 
 2P = Escort 2-Door GL Van 2000cc (CK build) 
 3C = Transit 125 Chassis Cab 
 3P = Escort 2-Door GL Sedan 2000cc (CK build) 
 4C = Transit 125 Bus 
 4P = Escort 4-Door GL Sedan 2000cc (CK build) 
 5C = Transit 175 Van 
 5P = Escort 4-Door XL/GL Sedan 1600cc (CK build)
 5R = Laser 3-Door Sport. (UK/UG build).
 6C = Transit 175 Chassis Cab 
 6P = Escort 4-Door Ghia Sedan 2000cc (CK build)
 7C = Transit 175 Chassis Windshield 
 7P = Escort Sundowner Van 1600cc (CK build)
 8C = Transit 150 Bus 
 8P = Escort Sundowner Van 20000cc (CK build) 
 9C = Transit 125 PMG Kombi 
 14 = Capri Deluxe Sedan. (CK build)
 17 = Capri GT Sedan. (CK build) 
 30 = Capri XL Sedan. (CK build) 
 40 = Escort 2-Door L Sedan 1600cc (CK build)
 41 = Escort 2-Door RS 2000 (CK build)
 42 = Escort 4-Door RS 2000 (CK build)
 43 = Escort 4-Door L Sedan (CK build)
 44 = Escort 2-Door XL/GL Sedan 1600cc (CK build) 
 46 = Escort 2-Door Ghia Sedan 1600cc (CK build)
 47 = Falcon Sundowner Van. (JH/JG build).
 48 = Escort 2-Door XL Super Luxury (CK build)
 49 = Escort 2-Door GT Sedan 1600cc (CK build)
 50 = Escort 2-Door L Van 1600cc (CK build)
 51 = Escort 2-Door XLGL Van 1600cc (CK build)
 52 = Cortina L Sedan (Taxi) 4-cyl. (CK/CG build)
 53 = Cortina XR Sedan Bench Seat. (CK/CG build)
 54 = Cortina XL Wagon Bench Seat. (CK/CG build)
 55 = Cortina GL Sedan Bucket Seat (Taxi). (CK/CG build)
 56 = Cortina GL Sedan 4-Cyl (XL Sedan Bucket Seats) . (CK/CG build)
 57 = Cortina Ghia Sedan 4-Cyl (XLE Sedan). (CK/CG build)
 58 = Cortina GL Sedan 6-Cyl. (CK/CG build)
 59 = Cortina GL Wagon 6-Cyl. (CK/CG build)
 60 = Cortina Ghia Sedan 6-Cyl. (CK/CG build)
 61 = Cortina L Sedan Taxi 6-Cyl. (CK/CG build) 
 75 = Cortina Fordor Deluxe and LSedan Bench Seat. (CK/CG build)
 76 = Cortina GL Wagon 4-Cyl (XL Wagon Bucket Seats). (CK/CG build)
 78 = Cortina GT and GTL Sedans. (CK/CG build)
 79 = Cortina L Sedan 4-Cyl. (CK/CG build)
 80 = Cortina L Wagon 4-Cyl. (CK/CG build)
 81 = Cortina L Sedan 6-Cyl. (CK/CG build)
 82 = Cortina L Wagon 6-Cyl. (CK/CG build)
 83 = Cortina Ghia Wagon 4-Cyl. (CK/CG build)
 84 = Cortina Ghia Wagon 6-Cyl. (CK/CG build) 

 Example: eng no CG80WM93394R
 Cortina L Wagon 4-Cyl built at Broadmeadows in Nov 1979.    
PINTO CAST DATE
   If you look at the top left of the block is some numbers and letters in a rectangle...
 16 K 79 
16 th day
K = November (A= jan , B= feb etc)
79 means 1979 
On a final note I wish to point out 2 things that have come to light during this exercise. 
Firstly, not all Pinto blocks have the cast date in the top left hand corner. I have 2 such blocks. Why this is so, I do not know. Can anyone shed light on this? 
Secondly, the cast date in the top left hand corner is obviously going to be earlier than the date stamped as the engine number which is determined during the assembly of the vehicle. For example, I have a block with a cast date of 8J72 which translates to October 8, 1972, yet the engine number stamped into the block begins with CK55NC which translates to: 
C = UK source 
K = Assembled at Sydney
 55 = Cortina GL Sedan Bucket Seat (Taxi). (CK/CG build)
 N = 1973
C = September 
Now I know the history of this block as I owned the baby blue TC Cortina it came out of many, many years ago, and the car had a build date of 1973, 11 months after the block was cast. Had the 2 dates been advance by 3 years, and the block was cast in in October 1975 but the engine number indicated a build date of September 1976, then this block would need to comply with ADR27a meaning standard carby, pollution gear and all that other crap instead of hot cam, twin Webers etc... The chances of blocks with dates crossing over into ADR27a are not only likely, but would have to be an absolute. Such blocks do/did exist. So when selecting your blocks for pre ADR27a use, make sure you use the engine number as date of the block, as this will be what your local RTA will use to establish compliance. 
I have done my best to insure that the information provided here is as accurate as I could find. Should anyone have information to the contrary, or is able to add any additional detail to what I have been provided, please feel free to do so. 
Chuff
                
 post edited by Chuff - 2015/07/08 10:47:23
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