Chrysler Repair: Sealant, head gasket leak, heater core

Question
Dale, I have a Chrysler van,which has a head
gasket leak,Is there a product that I can use to
seal this leak,One that will not clog up my heater
core.The shop's can replace a new head gasket for
$600.00-$800.00. Will this problem get worse if I
don't replace the gasket.What do you suggest !

Answer
Joe,
 How do you know that it is a head gasket for sure? If it is yes it will get worse. A blown H/G can cause all sorts of other problems, the worst being overheating and water in the oil which can spell new engine in most cases if untreated.  Depending on your engine 4 Cyl. or V-6 you should do both on v-6 not just one side.
hope this helps.
Dale