1988 Jag XJS V12 - Rebuild after 20 years

[Aristides (Aristides Balanos)]

Hi Mark and welcome.
Keep us posted on the progress, and post some photos!

For the alternator:

86 V12 Alternator upgrade alternatives

Gentlemen, I am looking in upgrade my failing alternator, but being in France where the GM alternators are not common I have to look to other alternatives, like the one from Land Rover or the 115A from the later V12 Jaguar or from the XJ40 as mentioned by Kirby and others. As I have installed an Audio system I would like to have some extra Amps. Here are the alternative options and prices for comparison: Original AEU1930 [image] Remanufactured Brand: Bosch upgraded to 90A 150 Euros shi…

As for the heads, if no leaks and good compression, I would let it be.