Can you install the injector in your original head to measure it's depth past the surface of the combustion chamber? Using a bore scope you should be able to approximate far enough. Then use thicker or thinner washers to get out close enough.
The B diesel is an indirect injected motor. As such, it really doesn't need an exact depth for the injectors. Close enough should be good enough.
Can you install the injector in your original head to measure its depth beyond the combustion chamber surface? Using a wider scope should allow you to get close enough. Then use thicker or thinner washers to get close enough.
The B diesel is a port-injected engine. Therefore, it doesn't require a precise injector depth. A close enough fit should be good enough.