Unleaded head

[howard jones]

Hi chaps.
Is there a simple way of telling whether an engine has had an unleaded conversion done ?

[les]

Not simple if the engine is assembled. Not always easy when head is off.

[bmcecosse]

It's not important unless you are doing high /hard mileage on M/way. Just set exhaust gaps at 15 thou - and check/reset them every 3000 miles - and don't waste money on silly additives either........