hi I own a 1964 jaguar mk2 3.4 it does not have a distributor on it but I do have one off a 420 g would it be compatable .
I would have thought so , I have a 240 dis on my 3.4 XJ6 engine , so the hole is the same size , would have thought they are the same size on all XK blocks !
Or try a complete dis from 123 ignition ( you can get them in POS or NEG earth. )
I got the on all my 3 Jags,
Regards,
Peter Jan
it should start and run the car, but the advance curve and vacuum probably wont be the same
Cheers lads you have made my day.