This from the factory or?

[ValiantKevin]

I am not new to engines, but I dunno if I have ever seen "sealer" like this used with freeze plugs.
This factory or you think someone has been into the motor before?
Obviously in 57 years a lot can happen lol. None of the plugs are leaking, all look great, might be hard to tell in the pics but this "sealant" 100% was added when these plugs were inserted. I guess it just don't seem like the factory would for 1) use a sealant or 2) not wipe it clean leaving excess to dribble (especially like in the pic with the casting number)

You all agree?

 

[RustyRatRod]

Not factory.

 

[ValiantKevin]

Not factory.

I was very certain too... guess I get to see what was done inside next lol

 

[missing linc]

Assembly lines don't have time to do anything like that, plus it's completely unnecessary. I never use anything when installing core plugs. Just make sure the entire area is clean and knock them in.

 

[4spdragtop]

I believe my 340 block looked similar. More on the rear one . Bought it from my mopar machinist so I trusted it and ran it. If you can, psi test it. They may have just flushed all the sediment and casting sand out??

 

[ValiantKevin]

Assembly lines don't have time to do anything like that, plus it's completely unnecessary. I never use anything when installing core plugs. Just make sure the entire area is clean and knock them in.

Exactly my thoughts too... I have never used anything and never heard of anyone doing it... so I thought I'd ask lol... plus it's on EVERY freeze plug, so it's not like they used it on one plug because it was problematic.

 

[Dana67Dart]

Red paint on top of the goop suggests the engine has been out at one point. Core plugs replaced and the block repainted

Also note it is "running" up

 

[413]

Stock core plugs have no stampings on them, aftermarket plugs generally do.

So clean these and look at them, are there any
numbers or letters stamped on them?

 

[toolmanmike]

Red paint on top of the goop suggests the engine has been out at one point. Core plugs replaced and the block repaintedView attachment 1716424210

Also note it is "running" up

Is thata crack running under your pointer?

 

[Ottmundr]

Is thata crack running under your pointer?

Good eye!

 

[Dana67Dart]

Is thata crack running under your pointer?

I saw that too buy dismissed it as a spiderweb

 

[cudamark]

Regardless if they're original or not, replace those steel plugs with brass ones so you never have to worry about them rusting out.

 

[ValiantKevin]

Regardless if they're original or not, replace those steel plugs with brass ones so you never have to worry about them rusting out.

I'm sellin it, decided to build a 360 lol

 

[toolmanmike]

I'm sellin it, decided to build a 360 lol

 

[Swinger 340]

Regardless if they're original or not, replace those steel plugs with brass ones so you never have to worry about them rusting out.

Back in the upper 80's, my engine builder used brass plugs and a (not sure of the name), brown sealer on all the plugs on installation. I'm thinking, maybe easier to install or slows down the corrosion process. I see no harm in it, but yes, not factory.

 

[MILO]

Lot of people here use aviation sealer

 

[Killer6]

Back in the upper 80's, my engine builder used brass plugs and a (not sure of the name), brown sealer on all the plugs on installation. I'm thinking, maybe easier to install or slows down the corrosion process. I see no harm in it, but yes, not factory.

Permatex aviation sealer referenced above, yes....