I was in the process of doing my 3.4 swap and crushed one of the heater core hard lines that run through the firewall. I have tried to round it out but it didn't work. So my question is where can I buy one of those hardlines,
thanks
Vehicle: 1991 Toyota Pickup 4x4
Motor: 3.0 to 3.4

 

ya cant ! used is the only option for factory .

I ended up making my own , the factory ones are cheep and mine had pin holes as well as squashed .
cooling system is relatively low pressure .. so no problems . I just used copper pipe .

 

Oh man, that sucks! How bad is it crushed? Unsalvageable?

 

Watch a few videos from this guy who repairs damaged instruments and apply that technique to fixing your brass line.

https://www.youtube.com/channel/UCup...1HB-HUw/videos