W

What, other than the S/N, am I seeing on this Data Plate

BW = Borg Warner transmission

8L = engine

In order:

Car number ( VIN) Engine Number
Body number Transmission number

I know it's a NA Car with BW 65 Tranny. Is that the Engine S/N after the 8L ? 5J Body S/N or what ?
What s the 025 27138 ?

Yes, 8L is the engine number, 5J is the body number and 025 is the transmission number.

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Has always been a 4.2 !

Thanks for the clarifications !

I think this was posted in the wrong forum. There has never been a 2.4 or 3.8 XJ.

I suspect the poster was caught by the silly "related threads" thing the forum software does, which is usually not related at all.

Yes exactly this :-)

Any upside or downside to replaceing the data plate ?

yes, you void the Warranty !

Warranty expired decades ago. Assume you're being humorous. I'm asking from a collectability & value standpoint.

yes, from a collectability standpoint I would not touch it if it was my car. Original is original pretty or not. Even value is affected when originality is disturbed.

Noted.
Thanks !

I suppose you could always have a new one made and epoxy it over the original if you wanted the best of both worlds…

Enough !