Hi , I need some advise about "straighten" my heater core bottom hose It's the last part of the puzzle I need to finish the job ,thank you The hole story is here : http://www.v8buick.com/showthread.php?308488-Insulation-(heater-core-replacement)
If that tube is just bent, you might try finding a radiator repair shop that could cut it off & put a new tube on. Or you might try bending it yourself, but you may not have enough tube length to get leverage to bend it without breaking it off the heater core. Heater cores are usually kind of flimsy anyhow, so be careful whatever you do.