Does no one sell a Freeze Plug set for the 3.4?

[mongo]

I am having a heck of a time locating a kit for my 3.4 block....

[Alxsmt]

i have no clue what store you could get them form other than a machine shop

[DEI37]

Did you check with the GM dealer?

[geoffinbc]

Any parts store should have them. The set I bought only took a few hours to get to the store and it had the galley plugs too. Mine Was Pioneer Performance Parts # PE-276-R Should be the same for your block

[60dgrzbelow0]

It is Best to Use Dorman Brass 34.3mm Core Plugs..

RockAuto also has what you need here...

http://www.rockauto.com/catalog/raframecatalog.php

These are probably comparable to the ones mentioned above by BetterThanYou and just in case those are not available, these might also do the trick for you. The attached photos will help with an assortment of choices and Part Numbers and show the reason why Brass really is the preferred fix for corroded and leaking engine block expansion plug issues. The Metric Size of these is 34.3 millimeters and although the block should only require six (6) they are only sold in boxes of ten (10). The before and after images of this ugly problem of rotting, galvanized steel ones cause are from the engine build I'm working on right now. (3.4L V6 L-32 207 CID). These work best when gently installed so as not to crack the block webbing and with the aid of some non-hardening, oil/water/gas resistant sealer.

Hope this is what you need...

--==Bob==--

[Firehawk94]

My 94 bird was a culprit of a blown freeze plug in the same location and it has the steel plug and was replaced by another steel plug. no problems as of yet and come to think of it i still have another plug that I didnt use........

By the way that plug looks NASTY 60dgrzbelow0. My plug didnt have any rust coming through and by eye it looked like a good sealed plug, but add water to it and water would seep through between the plug and block.

You know its weird that only the plugs on the back of the block...you know...the hardest dang ones to get to are ALWAYS the only ones that fail

[60dgrzbelow0]

By the way that plug looks NASTY 60dgrzbelow0...

Yes... and like the larger pebbles and rocks that get dropped in the slower turns of a meandering stream as opposed to the middle where the water is fast-moving, our little V-6's suffer from this same phenomena...more at the back of the block, where the water and anti-freeze in the cylinder jackets is losing velocity, often slowing enough to drop or deposit any dirt, rust or detritus along the back of the coolest portion of the engine (where the hidden freeze plugs suffer as a result of this concentrated and rusting goo), and where the bell housing and flywheel are absorbing some of the engine heat.

But as you can see from the attached "After" photos, the good folks at Godwin-Singer Machine Shop in St. Petersburg, Florida took the time to boil out the engine block with a caustic mix and clean all that awful junk out of there! Those new Brass Dorman plugs will outlast the engine before ever leaking (...but unless Hell itself freezes over ...we down here in Florida won't have to worry too much about them popping out from expansion...LOL)

[mongo]

Thanks for the advice. I ended up buying 6 brass freeze plugs from Car Quest (dorman 565-104) for $2.89 each. Kinda steep but worth it since they don't rust!

[60dgrzbelow0]

I think you will be pleased and have more peace of mind, too. Good luck on the fix and here is a bit more information on the best way to get the "Oldies" removed:

http://60degreev6.com/forum/f97/coolant-leaking-from-rear-of-my-1992-s10-t43879