I am fitting a 1983 eta engine to my 1987 325is manual.
The block has the 325i dish pistons fiited and I have stripped the head and fitted a 284/272 shrick cam
This engine came out of an auto and I have heard that I will have to fit a spigot bearing to the crank.
What is a spigot bearing? and where on the crank is it fitted?
I thought all I would have to change is the manual fly wheel.
can anyone help.


