Flathead Accessory

[Jeffstag]

What is this? I'm guessing a preheater?

 

[glennpm]

Early vintage McCulloch super charger.

 

[Jeffstag]

thamks!

 

[glennpm]

You're welcome. Here's more of the history.

https://www.dropbox.com/scl/fi/ldngd4y4kaik9awlhbpco/History.pdf?rlkey=v6vygsgsidk1zzf9crp5xpri5&st=mpy3eq5n&dl=0

 

[petehoovie]

What is this? I'm guessing a preheater?

 

[Kube]

Those do look cool. I have had a couple and even though they look cool, well, the reality is, they don't boost the power enough to notice.
These were normally found on buses and larger trucks, rarely on cars.