I would appreciate help on this.
Are the numbers on the back of the head any indication of when it was
produced or what it was originally used on?
If not, is there any number on the head that will identify it?
I’ve head that there should be a number on the back of the cam sprocket
enclosure (at the front of the valley) but I don’t have anything there.
On a related question, does the Heritage Certificate show the original head
number, and/or is it somewhere on the car?
The archives and FAQ will answer many queries on the XJ series…
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