Here's the deal. One of my head gaskets has a small leak. It only blows smoke when it's warmed up and idling or decelerating. I have seen "permanent" block sealer at the auto parts store, and was wondering if anyone has used this stuff. The motor is getting rebuilt in a cople of months, but i still need to drive the car for a while. Has anyone used this stuff before, and if so, is there a possibility that it will work in the short term. I know that it will probably clog up the heater core, and I'm prepared to deal with that. Any thoughts???

 

don't use those coolant sealers, they reduce your cooling effeciency by coating everything, and clogging everything.
its not gonna fix a blown head gasket, get it fixed or get a beater

 

Change the gasket!

 

You have no options only a solution. The solution being to change the gasket. The more you drive it the worse it will get. There is no fix other than that.