Flotek 180cc heads

[Grey owl]

So the mystery is the size of the holes for mounting assessories. That hole is larger than 9/16 it where the bolt for the power steering pump would normally go. The passenger side head is the same. Any ideas.. Will certainly need some Heli coils.

 

[m_m70]

thermactor plug????

 

[Oldtimer]

That is air injection port for smog pump. They are in both ends of the heads, and if you don't install all four thermactor plugs you will have exhaust leaks.

Pardon Our Interruption

5/8-11 outside thread, 7/16-14 inside thread for accessory mounting.

And it looks like the heads are installed on the engine, in the Bronco. Not sure you have access between back of heads and fire wall to install plugs.

 

[Grey owl]

Nope it bottoms out about an inch in.

 

[Grey owl]

I knew it had to something simple, those didn't come with the heads. Where do you get them.
Thanks

 

[DirtDonk]

I think Summit has them, but I’m sure others do too.
Did you call the manufacturer to see if they had them? Or if they know what’s going on with the big holes in their heads?

 

[Yeller]

@Oldtimer has the link in post number 3 from Summit.