Engine Serial Number to Car Identification

[hemifiedbird]

I am wondering how the serial number on the pad by the pan rail is identified to which car it goes to. I understand it matches the Vin on the car that it is in but how do you tell what car it was from if you have a engine and no car? The engines I have start out with (Example 9A271445). This determines Year and Plant, last 6 of Serial but there is no Indication of what model of car it was in. Or did they only build specific models at each plant identification?

 

[j-c-c-62]

I have a 55 Caddy, there is no VIN, just the engine stamped serial number, and it's 9 numbers, if that is pertinent.

 

[69Coronetrt]

I am wondering how the serial number on the pad by the pan rail is identified to which car it goes to. I understand it matches the Vin on the car that it is in but how do you tell what car it was from if you have a engine and no car? The engines I have start out with (Example 9A271445). This determines Year and Plant, last 6 of Serial but there is no Indication of what model of car it was in. Or did they only build specific models at each plant identification?

Each plant built certain makes and model either the entire year (Lynch Road was primarily B bodies so Belvedere and Coronet based cars. Jefferson was Chryslers and Imperials. Belvidere plant was Dodge and Plymouth C bodies, LA built A, B and E bodies depending on the year, etc)

So, you have to know what plant built what cars during what time frame of the model year. After that, VINS were assigned by make and sorted alphabetically. So for 69 Lynch Road on a given SPD, the Belvedere, R Vins, cars will have the lowest VINs than the Coronet, W VINs. After that, you have to have a data base of VINs that can bracket the unknown VIN, such as yours.

So for 69 Lynch Road, 271445 falls in the range of R based Belvedere VINs. If it's a 440, it came from a GTX. After that, we can only guess on the model. It could be from a Belvedere, Satellite, or Road Runner.

 

[Fran Blacker]

The A is the plant car was built. Don't think they'd put the same sequence number on two cars at the same plant.

 

[hemifiedbird]

Each plant built certain makes and model either the entire year (Lynch Road was primarily B bodies so Belvedere and Coronet based cars. Jefferson was Chryslers and Imperials. Belvidere plant was Dodge and Plymouth C bodies, LA built A, B and E bodies depending on the year, etc)

So, you have to know what plant built what cars during what time frame of the model year. After that, VINS were assigned by make and sorted alphabetically. So for 69 Lynch Road on a given SPD, the Belvedere, R Vins, cars will have the lowest VINs than the Coronet, W VINs. After that, you have to have a data base of VINs that can bracket the unknown VIN, such as yours.

So for 69 Lynch Road, 271445, it falls in the range of R based Belvedere VINs. If it's a 440, it came from a GTX. After that, we can only guess on the model. It could be from a Belvedere, Satellite, or Road Runner.

View attachment 1743746

I also have a Serial# B171582, There is no year stamped in it. It is a 426 Hemi so assuming it came out of a Cuda/ Challenger

 

[WileE]

I also have a Serial# B171582, There is no year stamped in it. It is a 426 Hemi so assuming it came out of a Cuda/ Challenger

B is Hamtramck.

 

[Fran Blacker]

A is Lynch Road

 

[69Coronetrt]

I also have a Serial# B171582, There is no year stamped in it. It is a 426 Hemi so assuming it came out of a Cuda/ Challenger

You can determine the year by looking at the pad at the front of the engine. Look for E, F or G.

Given the info in front of us, it could be from a 69 Charger.

 

[MWbirdLOVER70]

G is St Louis another big b body plant

 

[F6A12]

G is St Louis another big b body plant

I am wondering how the serial number on the pad by the pan rail is identified to which car it goes to. I understand it matches the Vin on the car that it is in but how do you tell what car it was from if you have a engine and no car? The engines I have start out with (Example 9A271445). This determines Year and Plant, last 6 of Serial but there is no Indication of what model of car it was in. Or did they only build specific models at each plant identification?

So do you have 9A271445?

 

[33 IMP]

So do you have 9A271445?

As you well know, that number is in the window of A12 production. (If it's a 440).

 

[hemifiedbird]

So do you have 9A271445?

Yes I have this VIN . I was using this as reference as I have other engines that I would like to know what car they came from. 9A271445 is a 383 Road Runner engine. I also have VIN #B171582. Also 9B296120, There is nothing stamped ahead of th B on the 70 Block. It is a 70 Casting, All the other components,Carbs,Alternator,Manifolds are all 1970. I was told it come from a 70 Challenger. I just would like to confirm.

 

[Rishi]

You'll have trouble confirming the car line the engine came from, without a corroborating full VIN number or other detailed car data. The ID pad at the base of the distributor may give you a date code and model year.

 

[hemifiedbird]

You'll have trouble confirming the car line the engine came from, without a corroborating full VIN number or other detailed car data. The ID pad at the base of the distributor may give you a date code and model year.

B is Hamtramck, And from my research B and E bodies were built there. The B171582 is a 70 426 Hemi so it is possible it came out of a B or E body

 

[F6A12]

As you well know, that number is in the window of A12 production. (If it's a 440).

Thats why I was asking. I picked up an A12 block at Carlisle this last year. Its 27 off from my car. Probably the closest I'll ever get

 

[69Coronetrt]

Yes I have this VIN . I was using this as reference as I have other engines that I would like to know what car they came from. 9A271445 is a 383 Road Runner engine. I also have VIN #B171582. Also 9B296120, There is nothing stamped ahead of th B on the 70 Block. It is a 70 Casting, All the other components,Carbs,Alternator,Manifolds are all 1970. I was told it come from a 70 Challenger. I just would like to confirm.

9A271445 - Dive deeper. If it is an HP assembly, that will be marked on the pad in front of the engine. IF is an assembly made for an automatic, then it would be out of a Road Runner. IF it is a four speed assembly then it could be from a Road Runner OR any Plymouth B body (RL, RH, RM, RP) with a four speed. Look at things like the carb, distributor and crankshaft to determine if the assembly is for an automatic or four speed.

B171582- If it's a 69 assembly, then it's from a Charger.

70 Hamtramck did not make both B and E bodies so if it's a 70 Hamtrack assembled Hemi, it's from an E body. Based on what I have on file, I think it's likely it's from a Challenger. Again, what is stamped on the front pad? What carbs, if any, does the car have? What distributor?

9B296120 is out of a Barracuda.

 

[69Coronetrt]

You'll have trouble confirming the car line the engine came from, without a corroborating full VIN number or other detailed car data. The ID pad at the base of the distributor may give you a date code and model year.

We do it all the time by bracketing the unknown VIN with known VINs. Then, we use a little logic when or if possible. I.E. From what plant is the assembly? is it a 440 or Hemi? Is it a 318 or 383? Does it fall in the known range of T/A Challengers, AARs, A12's, Daytonas? etc.

With the right data and other info, we can get pretty close as to what an assembly came out of.

 

[hemifiedbird]

9A271445 - Dive deeper. If it is an HP assembly, that will be marked on the pad in front of the engine. IF is an assembly made for an automatic, then it would be out of a Road Runner. IF it is a four speed assembly then it could be from a Road Runner OR any Plymouth B body (RL, RH, RM, RP) with a four speed. Look at things like the carb, distributor and crankshaft to determine if the assembly is for an automatic or four speed.

B171582- If it's a 69 assembly, then it's from a Charger.

70 Hamtramck did not make both B and E bodies so if it's a 70 Hamtrack assembled Hemi, it's from an E body. Based on what I have on file, I think it's likely it's from a Challenger. Again, what is stamped on the front pad? What carbs, if any, does the car have? What distributor?

9B296120 is out of a Barracuda.

View attachment 1773798

9A271445 is a 69 383 4Spd 1969 Roadrunner, I was told B171582 was out of a 70 Challenger. Thanks on the 9B296120

 

[Big D A12]

Would you mind sharing the engine assembly date and cast date from 9A271445? I am in agreement, it is from an RM2X vehicle.

D

 

[hemifiedbird]

Engine Cast date 4/18/69, Build Date of Car 513 which is May 13/69. RM23H9A271445. 383 4spd