IML: Overheating Problem

["Eric Nelson" <ericnelson424@xxxxxxxxxxx>]

Help,

 

My '67 keeps overheating.  I've diagnosed the problem all summer and tried different solutions none have cured the problem entirely.  I now beleve that there is too much rust and sediment in the block to allow for efficennt engine cooling. 

 

My question to the group is... how do I flush the block and is there anything I can put in the coolant to loosen up the rust?

 

thanks

 

Eric