Jaguar engine numbers

[Marvin Gruber]

I recently bought a 68 XKE that the engine numbers weren't matching to the car. Plate showed a 7E55167-9, the engine in the car is 7D50380-9. SO I can't find any designation on the "D". Is it a replacement engine or one out of a sedan?

Marv

 

[Deleted member 8987]

https://www.jcna.com/forums/view.php?Vref=jcna&Vfnum=120&Vthread=1791

The 4.2 litre engine fitted to the MK X of 1964 started with 7D50001
and continued until the end of 1966,when the 420G came into production.At
the end of 1966 there were still a number,reported to be about 75 cars,of
4.2 MK X's sitting in Montreal.These were converted into 420G's becaues it
was mostly just trim that made them different with the exception of the serial numbers,but who was to know.The 9:1 cylinder heads were a gold colour and the 8:1 were more of an orange colour similar to the XK 150S.
There were 5119 MK X's built plus 18 limo's.Please take note that the engines delivered to each car were in assending numbers but not all of them went only into the MK X.The motors were used for many other products
including fire fighting and machinery such as military equipment.I have the "Jaguar Vehicle Identification Listing" supplied to the Dealer Network
that shows car and engine numbers for each model.For the listing of 420G
it shows 1666-68 G1D.... 7D....
They have no record of what chassis or engine number was the first one.

 

[Marvin Gruber]

Sounds like I have an early Mark X motor. Thanks for the info.

Marv