[ralphpam]

Is there a prethreaded hole in the exhaust manifold to install a EGT sensor and if so where is it located?

 

[KMKDIESEL]

I just drilled and tapped mine right above the turbo flange.

 

[Harvie]

no, no predrilled holes.

 

[azpyroguy]

If you use a 90 degree angle drill.. you will make drilling the hole MUCH MUCH easier...