year Engine ID

[jimoshel]

I am trying to determine the year of a 4.0 engine I have and did not label when I pulled it. Any help appreciated.

The tag on the distributor reads  53021352M

                                                9    357        47   88       553537

                                              PLT B/CODE  YR  DATE  560  NUM

 

I am assuming this means it is an 1988. Anyone help?

 

     DON??

[Marine1Texas]

renix 4.0 1988

[jimoshel]

Tnx Noriyon. I suspected that's what it was but wasn't sure. One thing threw me off it has the Chrysler  Penta Star logo all over it. I didn't think they started doing that until '91 or 2.

[HOrnbrod]

The best way to tell what engine block you have is by the code stamped on the block below the spark plug holes.

 

Example:  401MX12

Decoded:

* 4 = Year (1994)
* 01 = Month (January)
* MX = Engine Type/Fuel System/Compression Ratio (MX is a 243 CID, multi-port fuel injection system with 8.8:1 ratio
* 12 = Day of month of engine build

 

Casting numbers are also on the 4.0 blocks as follows:

Year       Casting No
1987-90 53005535
1991-95 53008405
1996-97 53020569
1998-98 53010341
1999-04 53010449

[jimoshel]

Don. According to your chart, it's a '93. TNX buddy. :thumbsup:

[Marine1Texas]

the casting number match's 1987-90 casting. Unless they made the casting after? I have a 1987 and your casting match's mine!

[cruiser54]

The best way to tell what engine block you have is by the code stamped on the block below the spark plug holes.

 

Example:  401MX12

Decoded:

 

* 4 = Year (1994)

* 01 = Month (January)

* MX = Engine Type/Fuel System/Compression Ratio (MX is a 243 CID, multi-port fuel injection system with 8.8:1 ratio

* 12 = Day of month of engine build

 

Casting numbers are also on the 4.0 blocks as follows:

Year       Casting No

1987-90 53005535

1991-95 53008405

1996-97 53020569

1998-98 53010341

1999-04 53010449

That's^^how you do it. 

[Incommando]

nevermind