I do not have a "numbers matching" XJ6C.


My fender plate says VIN# UF2J 51008 BW
It also says the engine # is 8L 20640L


On the back of the block, drivers side I see 8L 40403L


Any way of telling what the 8L 40403L block is out of? Year? Etc.?

 

My guess is probably going to be around the 77/78/79 model year..
I've tried to record the engine numbers of some of the cars I've parted.
I had a 75 Coupe that had eng# 19630L (car #50566)... then another Series 2 (not sure of the year, but I think it was 77), that had 29294L .... by 12/83 the number had jumped to 149199 (!)
Hope that helps narrow it down a bit...
Cheers,
David
shop.EverydayXJ.com

 

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I can't remember the full number at the moment but the engine number in my car from a 1975 donor XJ6 begins 8L165**. I don't have the actual build date of the donor car.

 

I understand that series 2's had engine numbers with a 7 prefix and series 3 had an 8 prefix!!

 

Have a look at XJ6data.com. You may not get exact information, but the engine numbers are listed for some cars, which may give you an idea.

Regards,
Andrew.

 

Thanks, tried that and registered my XJ6C but couldn't find other engine numbers.

 

Jaguar XK engine decoder.

This is for the 4.2litre engines only.

7A30001> 4.2 Daimler Sov
7D50001> MK10 and 420G
7E***** E Type S1 & S1.5
7F1001> 420 Compact
7L***** XJ6 S1
7M***** DS420 Limo
7R***** E Type S2
8L***** S2 onwards.

The inclusion of the “L” is for long stud engine.
All others are what is known as short stud.