Spalding magneto ID,please.

Picked this up out of a scrap pile this morning.Trying to determine vintage.
Spalding V8 magneto.
Type S1-303
Part no.3505
Looked around on the net and found not much and nothing helpful.
My guess is that it's for a SBC but I have been wrong in the past.

 

looks SBC

 

I don't think it's a magneto; looks like a 'dual coil' distributor - it uses 2 coils, one on each side (that's why there are 5 places for wires to go into on each side)

If it is, it's as cool as a magneto as far as being 'traditional'.

Note: I have been wrong before.,..........

 

Shaft looks a little short for SBC. Maybe Pontiac or Buick?

 

here is an other treath about it

http://www.jalopyjournal.com/forum/showthread.php?t=90135

perhaps it helps

 

As usual your answers were correct and I was wrong.Happens daily.LOL
According to the chart it is for a Oldsmobile