413 heads

[RVW]

Just had to remove the cylinder heads from my 62 Dart because the "freeze" plugs are leaking. The guy that did my heads used the flat type of plugs. I have never seen freeze plugs like them. I checked a couple of other heads I have laying around and they are all the cup type. Anybody know if these are the correct freeze plugs for casting number 2206324? See the pictures

 

[Mike67]

Im no builder by any stretch, but it looks like they are installed backwards...???...

 

[1967coronet440]

Never seen that, im no builder either I agree with mike they look to be installed backwards

 

[khryslerkid]

They definitely look backwards.

You could use a sliding hammer, drill a hole in them the right size for the screw and remove them that way.

You might be able to tap one side so they spin in the hole, then grab or pry them out.

Being installed backwards might be the reason they leaked. Also shows the builders expertise.

I would think that you could have replaced them without removing the heads...

 

[dieseldazzle]

If the guy that put those freeze plugs in, is the same guy that rebuilt your heads and he didn't have a stroke in the middle of it, run away

 

[Cornpatch MO]

You kids just haven't been around long enough ..LOL The early freeze plugs were a domed disc that butted up against a lip on the inside of the hole. You punched them in the middle of the dome to expand- tighten them up. Not the best ideah, I have blown them out before on my 354 Hemi...............................MO

 

[RVW]

If the guy that put those freeze plugs in, is the same guy that rebuilt your heads and he didn't have a stroke in the middle of it, run away

Actually the guy that did do the heads died about a year ago shortly after he did the heads.

 

[miller]

Hope I don't fall into that category. No matter. If their leaking, gotta come out, anyway.
The cup type freeze plugs are the new and improved (lol), over the older disc type. Been years since I've seen some. No fun getting them to seal.

 

[khryslerkid]

The early freeze plugs were a domed disc that butted up against a lip on the inside of the hole.

Damn MO, you're absolutely correct! I totally forgot about that style plug. They looked like a dished silver dollar.

If they were the newer style, installed backwards, they would be more flat and not rounded like RVW's. I don't believe they used that style, from the factory, in 1962? I retract my comments and stand corrected!

Here is a 1963, 413, "200" head that I have.

 

[493 Mike]

My 59 413 had this style core plugs. They seal fine-properly installed.
Mike

 

[PurpleBeeper]

You kids just haven't been around long enough ..LOL The early freeze plugs were a domed disc that butted up against a lip on the inside of the hole. You punched them in the middle of the dome to expand- tighten them up. Not the best ideah, I have blown them out before on my 354 Hemi...............................MO

RVW...you better be careful. I would double check this situation with the "lip" inside the freeze plug hole. You might be forced to use the old style freeze plugs, but they should be fine. Thanks for the info Cornpatch!

 

[Centerline]

This is the rear cam plug in a 331 Hemi. Its the same type as the freeze plugs in your head. As you an see they are smacked in the center (with a ball style hammer) which expands them for a proper seal. Definitely old school, but when properly installed they work just fine.

 

[dieseldazzle]

You kids just haven't been around long enough ..LOL The early freeze plugs were a domed disc that butted up against a lip on the inside of the hole. You punched them in the middle of the dome to expand- tighten them up. Not the best ideah, I have blown them out before on my 354 Hemi...............................MO

Well at least I don't have to tell my wife was wrong, just you guys on this forum. Lol

 

[Sonny Black]

my 1960 (out of a 300f/413 )..have the cup like freeze plugs....but they are in opposite or a dimple in middle if smacked like the "Hemi" pic
they look concave after install....

I will try to drive over to where it is stored and snap a picture....here is the only pic that i have..just posed it for shits/giggles....

 

[Cornpatch MO]

A little side story on those early freeze plugs. On my 354 Hemi block, part of the inside lip was broken out. " Hemi Hot Heads" make a stainless steel plug with an O ring , and is held in place by a "T" that fits inside of the block . Works great, but kind of defeats the purpose................................MO

 

[65NUTCASE]

Nothin beats old age and wisdom. Thanks for the education Mo !

 

[Centerline]

A little side story on those early freeze plugs. On my 354 Hemi block, part of the inside lip was broken out. " Hemi Hot Heads" make a stainless steel plug with an O ring , and is held in place by a "T" that fits inside of the block . Works great, but kind of defeats the purpose................................MO

You mean these....

Used them on the 331 I installed in my '53 Chebby Pickup.

 

[62 Dart Convertible]

Brass ones installed in my 324 heads...

 

[khryslerkid]

I don't believe they used that style, from the factory, in 1962?

Replying to my own post! That's really bad, lol

Here's my origanal '62 361 engine

 

[Krooser]

Ancient thread but to install those disc type plugs you tap them into place then place the pein end of the hammer on the disc then hit the face of the hammer with another hammer...bingo no leaks