Freeze Plugs?

[stock63futura]

There are smaller freeze plug looking holes under the exhaust manifold, one of them is leaking coolant. What are these things?
I cant figure it out. Thanks!

-Brian

 

[oldgrezmonke]

That's what they are . Freeze plugs come in a wide range of sizes and are very commonly used to seal cooling system passages .

 

[powerband]

These "freeze plugs", the small ones under the exhaust are a frequent topic - unfortunately. Easy to replace with head off or at least exhaust manifold removed

not recommended but ...:
... when I first picked up my '63 wagon I went to work cleaning it with a hi-pressure washer. the pressure washer promptly blew right thru one of the freeze plugs you mention. I mixed up some JB Weld and pushed it in with my thumb figgerin' I'd be fixing it real soon. After @ 5 years, it was still was intact when I passed engine and tranny to another Falcon guy for his '63. Most don't have this much confidence in epoxy and I was surprised it held up in hi-temps.

Have Fun

 

[stock63futura]

So, I was told that to tell whether my engine was a 170 or a 200 to count the freeze plugs, is this accurate? If so do I count these freeze plugs, or just the larger ones?

-Brian

 

[stock63futura]

Also, Here are my casting numbers-
C3DE S460-A -exhaust manifold
C3DE-6015 E - block

Can't seem to find the one on the head, I will look again tonight.

-Brian

 

[powerband]

So, I was told that to tell whether my engine was a 170 or a 200 to count the freeze plugs, is this accurate? If so do I count these freeze plugs, or just the larger ones?
-Brian

Yes, count the big frz plugs along block starter position:
3 freeze (core) plugs = 170
5 Freeze plugs = 200

(some controversy wether there were any 3 frz plug 200's , but haven't seen actual confirmed pics yet )