The studs on the side of the heads, how do you remove them ? What kind of socket, does anyone know ? My backup engine doesn't have them, my old engine has them so yes I need to transfer them.

 

studs can be removed 2 ways...either use a stud remover or pipe wrench(both will destroy the threads). or you can put 2 nuts on the stud, tighten the 2 nuts up against eachother, then use a wrench to try to remove the stud (2 nuts tightened up against eachother acts as a gripping point so you dont damage the threads)

are they just studs or is there some special head or something

 

All the studs in mine were easily removed with a 12 pt. box wrench. 1/4" I believe.

 

1/4 ?? The studs are that big ?

I'll try the two nuts, and yes the studs have that dumb star head on them. Kinda like an inverted torx bit.

 

Not sure on the 1/4" but a 12 pt box wrench, which EVERYBODY has will work.
Okay. Just went and checked. It's definitely 1/4 inch. It fits like a glove.

 

Thanks. Now I'll see if I have one *L* probably misplaced it.