Freeze plug removal

[Bradley D.]

The freeze plugs on my 327/350hp are weeping coolant
any type of stop leak that will help
passenger side plug is blocked by motor mount, can you raise engine enough to
remove?

[Robert D.]

Re: Freeze plug removal

Brad
if you remove the engine mount or mounts lift the motor there is a freezeout plug tool that you can use to get in there to replace the freeze out plug. The tool has a curved handle with a ball joint on one end that the freeze out plug fits into so you could hit it with a hammer and get the correct angle. i usually put hi heat silicone around the plug and let it sit for a day or so to dry. i like the high heat silicone because its orange and almost matches the engine paint.
Hope this helps
Bob

[Larry M.]

Re: Freeze plug removal

The freeze plugs on my 327/350hp are weeping coolant
any type of stop leak that will help
passenger side plug is blocked by motor mount, can you raise engine enough to
remove?

Brad:

Are the freeze plugs new or old?? If old, it may indicate overall plug corrosion issues that will require new plugs to be installed all around. If new, you might try some Bar's stop leak, which is what the factory used for the new cars to stop any potential small leaks in the cooling system.

I have always installed new plugs with a bit of Permatex#2 around the circumference to help provide a seal.

Larry

[Stephen L.]

Re: Freeze plug removal

I had an original freeze plug leak due to corrosion. Unfortunately, the plug was located inside the bell housing on the rear of the block. Had to remove engine to correct. When I removed it (and others) there was a buildup of "rust sediment" in those areas which resulted in the corrosion. If one old one leaks, the others are soon to follow.........

[Michael F.]

Re: Freeze plug removal

why didn't you just remove the trans, seems it would be easier, faster and safer.

[Stephen L.]

Re: Freeze plug removal

I don't have a hoist so working on my back under the car is not fun..... Pulling the engine (trans attached) allowed me to do some other things but also gave me good access to all the freeze plugs for replacement. Just my preference....

[Bradley D.]

Re: Freeze plug removal

My plugs are old and are corroded
so I have to remove engine or trans correct?

[Duke W.]

Re: Freeze plug removal

Throw a couple of Bar's Leak tablets into the cooling system. That might seal it up, at least temporarily.

Duke

[Stephen L.]

Re: Freeze plug removal

Bradley,
I guess anything might be possible to leave the engine in place to replace the freeze plugs.... By the time you get access to the plugs and have adequate room for re-installation you'll be wishing you took the engine out (My opinion).
Attached is a photo showing the plugs along the side of the engine (BB 427) There are also some inside the bell housing as shown in the photo of 1 plug. Remember, there are no exhaust manifolds, starter, frame, transmission, bell housing and various other stuff, to name a few.....
You call as to your approach.....

[Ty T.]

Re: Freeze plug removal

Replaced quite a few back in the day. Back then there was a tool shaped kind of like a cats paw pry bar that was pointed at one end I would knock a hole through the center and flip the tool around and us the angled end to pry it out. Worked great if you could get at it.That being said, I probably pried more out with a large screwdriver than anything else again depending on room. Sometimes had to deform the hell out of them and pull them out with a pliers. Installation always depended on the room. Anything you can do to get it started and carefully tap around the edges if you can't get a clear shot at the center. I recall sometimes using a socket on the end of and extension to get at it. I honed my cussing skills pretty good back then.