SPArKy_Dave 8,865 Posted March 5, 2020 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 and U = Japan. 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 Therefore; A = USA source L = Assembled at Broadmeadows Truck plant 1J = F100 4x2 Y = 1981 M = March F-Series Body Codes 1J = F100 4x2 4K = F100 4x4 1T = F100 Bronco 2J = F250 3J = F350 5K = F350 4x4 4J = F500 6J = F600 1K = F700 2K = F750 3K = F800 and F8000 Now onto the engines. The engine codes for the F series trucks are unique and not linked to the passenger vehicles and are also relevant to the years of manufacture. Therefore, for the following years, the codes apply as follows; 1970 Engine D = 4.0 litre (240 CID petrol 6 cylinder) E = 4.9 litre (300 CID petrol 6 cylinder) T = 5.4 litre (330 CID petrol 8 cylinder) Transmission 4 = 4 speed 5 = 5 speed 1971 Same as above except for; Transmission 3 = 3 speed column shift B = 3 speed floor shift automatic 1972 Same as above 1973 Engine D = 4.0 litre (240 CID petrol 6 cylinder) E = 4.9 litre (300 CID petrol 6 cylinder) Transmission 4 = 4 speed B = 3 speed floor shift automatic 1974 (US Drive line) Engine L = 4.0 litre (240 CID petrol 6 cylinder) E = 4.9 litre (300 CID petrol 6 cylinder) Transmission L = 4 speed manual floor shift B = 3 speed floor shift automatic 1974 (Local Drive line) Engine L = 4.0 litre (250 CID petrol 6 cylinder) Y = 4.9 litre (302 CID petrol 8 cylinder) Transmission L = 4 speed manual floor shift R = 3 speed automatic 1975 Same as above except for; Engine E = 4.9 litre (300 CID petrol 6 cylinder) 1976 Engine L = 4.0 litre (250 CID petrol 6 cylinder) Y = 4.9 litre (302 CID petrol 8 cylinder) E = 4.9 litre (300 CID petrol 6 cylinder) Transmission L = 4 speed manual floor shift R = 3 speed automatic 1977 Same as above except for the 300 CID engine is no longer available 1978 Engine B = 5.8 litre (Pre-ADR 36) C = 5.8 litre (Post ADR 36) Y = 4.9 litre (2 wheel drive only) X = 4.9 litre (4 wheel drive only) L = 4.1 litre (Pre-ADR 36) H = 4.1 litre (Post ADR 36) Transmission L = 4 speed manual floor shift R = 3 speed Cruisomatic column shift 1979 & 1980 Same as above 1981 and onwards Engine W = 4.1 litre 6 cylinder C = 5.8 litre 8 cylinder (carburetor version) T = 5.0 litre (fuel injected) Transmission L = 4 speed manual floor shift R = 3 speed Cruisomatic column shift Now back to the model code. I will start with the easy ones first being the 1978 to 1981 F series trucks. As shown above, the ute in question had a model code of 62112 and it is this number that can be used in conjunction with the following code breaker to find out what you have. Model Digits 1 & 2 = Product line (more on this later!) Digit 3 = Year of manufacture (actually applies to all F series trucks) Digit 4 = Body style 1 – F100 Chassis Cab 2 – F100/250 Style Side Body 3 – F100 Ambulance and F350 Chassis cab Digit 5 = Series 1 – F100 Short Wheel Base 2 – F100 Long Wheel Base of F250 3 – F350 Short Wheel Base 4 – F350 Long Wheel Base So from the above model code of 62112, this equates to; F100 S-Cab, 1981 build year, F100 Chassis Cab, F100 Long Wheel Base of F250. Now onto the pre 1978 model codes. According to the book, there are heaps of model codes, especially so for the years of 1970 through to 1972 as the codes covered the F100 all the way up to the F700. Therefore, I am only going to cover a year that is more applicable, namely 1976. 62611 – F100A C.Cab 2972 mm W/B 2586 kg GVM 62612 – F100A S.Cab 3379 mm W/B 2586 kg GVM 62621 – F100A S.Box 2972 mm W/B 2586 kg GVM 62622 – F100A S.Box 3379 mm W/B 2586 kg GVM 62632 – F100A Ambulance 3379 mm W/B 2717 kg GVM 74611 – F250A 2WD C.Cab 3379 mm W/B 3448 kg GVM 74612 – F250A 2WD S.Box 3379 mm W/B 3448 kg GVM 73613 – F250A 4WD C.Cab 3379 mm W/B 3493 kg GVM 73614 – F250A 4WD S.Box 3379 mm W/B 3493 kg GVM 74631 – F350A C.Cab 3480 mm W/B 4536 kg GVM 74632 – F350A C.Cab 4089 mm W/B 4536 kg GVM As you can see, the two first numbers (Product Line) change according to the type of vehicle required. (info, courtesy of 'Paull', from Ford Australia Forums) 2 gerg and Boingk reacted to this Share this post Link to post Share on other sites
Boingk 862 Posted September 18, 2020 Hi mate, awesome info. I've got the build code 757703 for my F-truck. Any ideas there? I am missing the VIN plate (floor rust) so am going to get it re-issued. - boingk Share this post Link to post Share on other sites
gerg 10,871 Posted September 19, 2020 Looking at the tag in your build thread, the last digit seems to be separate from the rest, like it's one too many. Maybe that's a variant on the model designationSent from my CPH1920 using Tapatalk Share this post Link to post Share on other sites
snag 0 Posted January 7, 2021 Great post, very helpful. My vin starts with ak2jjc so from that I've worked out that its American built, assembled in Sydney, an f250 and produced in the year J and the month C. How do I find out what year J and what month C is? My model number is 73911d41 so the year figure there would be a 9 according to this. Being a bumpside, 250 swb dually, I'd assume that its a 69. Would that be safe to assume? Thanks, snag. Share this post Link to post Share on other sites
FORD_MAN 1,026 Posted January 10, 2021 Yep J 1969 C September Share this post Link to post Share on other sites
Ant 2 Posted June 21, 2021 G'day Sparky Dave and everyone who might help. Hope its ok to start a new thread as well as post it here as I'm not sure if anyone will see it as this thread is older. Sorry if this is long winded. After typing all this out with one finger it seems so. I just joined this forum to see if you might be able to help. The info you posted on this thread is the most accurate I've found. I have recently purchased a Ford F100 1977 long wheel base 4x4 automatic floor shift with a (351 Cleveland maybe). From what is posted here I believe I have verified I have a 1977 ford f100 4x4. But that's where I don't know the rest. The vin is AL4KTR50448K Model code is 64727 Engine code is Y (I need help here it looks like Y is a 302) Transmission code is L (which is 4 speed manual and I have auto). SDIO code is 929334 Engine number in the truck is JG31RP61522K (which it seems comes up as from a 1975 ford falcon station wagon) but I don't know how to check the engine capacity or other engine specs, heads if I am right about that? Looking at the block casting it's D43DCA. I don't know what this means but its the square Cleveland block with no numbers on the heads. When I purchased the guy said he has owned it for 15 years and bought it from a dealer who said the engine had been rebuilt with high compression heads by the previous unknown owner and its a 351 Cleveland. I get between 175 psi to185 psi compression test. So now I'm on the learning curb trying to figure out the codes to see what I've actually got. which I'm gathering at this point its a 1977 Ford f100 4x4 long wheel base and the engine and transmission have been changed or its the original engine and transmission. Its either a 302 or a 351. The heads look like 351 but what was factory for this vehicle is what I'm after are engine specs for the engine I have and where it originally came from. Cheers and hope you guys might be able to help out. 1 bear351c reacted to this Share this post Link to post Share on other sites
bear351c 10,270 Posted June 21, 2021 Hi mate, you're correct. JG31 is a Falcon 500 wagon. To check the displacement without removing the sump or heads, pull a spark plug, stick a drinking straw in the hole and slowly wind the engine over by hand/socket. Measure how far up and down the straw goes. 302 had a 3 inch stroke, 351 had a 3 1/2 inch stroke. Heads can be tricky, as to whether they are 302/351 closed chamber or open chamber. I have heard MANY stories/tales of peeps saying they are right, they have a factory blah,blah with special order blah,blah....... obviously the best way is removing the heads and have a look. Depends on what you want to find out. If it's running sweet and not blowing smoke, don't care and drive it like ya stole it.! D4 engine casting is roughly 1974. But the numbers dont make sense to my tiny brain. Normally something like a D4DE - 6015. C is 1960's, D is 1970's, then the actual year, (so 1974 )D for Falcon, then it usually has an E for Engine. 6015 is block. Hope this gets you started. 1 Ant reacted to this Share this post Link to post Share on other sites
Ant 2 Posted June 22, 2021 Thanks Bear I know your right about checking the displacement through the spark plugs and no doubt I'll be removing the heads in the near future to find out what I have. Plan is to do a serious restoration on this truck and I'd like to look at diff ratios and transmissions to suit this 4x4 to get it more suited to cruising and be as quick as practical of t he mark. I'd like to know more about the origin of this engine and the truck. Is transmission code L in F trucks is for a manual? I gave you the wrong casting number. The block casting number is D2AE-CA and the casting date is 4A23 I have found a reference to D2AE-CA here https://www.enginelabs.com/engine-tech/a-guide-to-ford-v8-engine-block-casting-numbers-1952-1996/. If this correct I'm stoked cause it's the Cobra jet engine. But wondering if that engine came out in a wagon? Do you know how the casting and date is decoded. cheers mate. Share this post Link to post Share on other sites
bear351c 10,270 Posted June 23, 2021 Hmm......... interesting. Guess you wont really know until you pull the sump. Casting date is pretty simple. 4 is the year, A is the month, 23 is the day. So your block was cast in the foundry on Jan 23 1974. Even though your engine block casting number is 1972. (D2) thats the moulds they used, same for several years until they wore out, or changed engines. You may find that you just have a 351 2V, but, they used the same block for the Boss, Cobra Jet, etc.. but modified them later for screw in studs, different heads, 4 bolt main caps. Carb, cam, extractors and ignition. Change diff ratio for what you want the Effie to do, Tow truck, quick off the line, fuel economy.... 2 Ant and gerg reacted to this Share this post Link to post Share on other sites
