I have a pinched heater core pipe that I need to repair. I had a friend tell me there was a special tool to repair it and bring it back to shape. Anyone know what its called and where I can get one?

 

the name of the special tool is pliers and and a rag.

 

What you need is a pipe shaper/expander.
Commonly used to expand exhaust pipe, some units are shaped to return pipe to round without changing the diameter.
Look in plumbing supply sites for a unit that will work with that size pipe.

 

lol, yeah this is what I ended up using. I was happy that the heater core leak was from the hose that connected the pipe to the core! All I did was replace the crappy stock clamp with worm gear clamps and its good to go

 

I've used a socket and a set of Vice Grips. Wrap the heater pipe in many layers of duct tape, insert the socket, and squeeze carefully. You can get it mainly back into shape.