Jeff P31

How do you think they make the blocks . With out the freeze plug holes they would have to make the block solid .

JaayTeee

It's not their intended purpose...they're core plugs
( used in the block casting process)

I've never ran across one that had one pop out
that didn't have a cracked block.

bert4332

So what is the next step, put new brass plugs in and fire it up and see if there is water spraying all over??

No point upgrading power in that hull. The hull isn't speed efficient, it does everything real good, not great, putting in bigger power will not yield a whole lot of top end. I can buy a gen VI long block for $500 and just swap my magnum parts.

But I need this like a hole in the head right now. Damn I just purchased a new Hydromotive Quad IV too.

bert4332

nt

offshoredrillin

exactly, they really arent freeze plus, this name got added to them. they are casting plugs, in order to shake the sand out from the casting process.

Unfortunatly I have to agree with the others, have the block checked, i lost a 383 stroker motor the same way it was brand new in my truck w/ antifreeze but i couldn't get it running right and enough to circulate it, and then the cold set in

bowtie

When you remove the block drains you have to put a piece of wire in the hole and move it around. This clears it out so all of the water drains. If you do this you will get all of the water out, leaving nothing to freeze. Then all the anti freeze is used for is the anti rust protection. I've taken many drain plugs out and no water came out, you must clear the drain hole or you're leaving water in the block.

whoya

[QUOTE=bert4332;3079210]So what is the next step, put new brass plugs in and fire it up and see if there is water spraying all over??

If its cracked internal you will not see it spraying. If you don't get it pressure tested then start it up and pray your oil does not turn to a milkshake color.
Should be a four bolt main block in case you need to look for one.
Good Luck

Audiofn

If you just want to hope for the best and fire it up they make rubber freeze plugs at NAPA and similiar that you could get and just put in to try. I am not sure how tight your bilge is but there is no way I could get freeze plugs into any of my boats with out pulling the motor unless I used the rubber napa ones.

klaw

Kinda weird if you drained the blockl that you popped the plugs
Sounds like you must not have drained block all of the way

Frequency

It is unfortunate that freeze plugs have come to be thought of as a measure of protection against block damage. I guess aside from the real reason they are there, they let you know you are screwed before you run the boat and tear up everything else inside the motor.