Super Jet What head is this?

[Dmac80sc]

What head is this. Was told its is ADA head but I didn't know they made a 2 piece one. There is not markings on the head. The domes say 39 2 on them as the only markings is that meaning 39cc?

 

[swannysxr]

Kommander/JSU maybe?

 

[restosud]

wamilton,blowsion and a few others.good strong head.

 

[Crab]

Looks like my greater Yamaha head...blowsion domes should fit also.