I have a '79 Thunderbird, with a 302, exhaust from manafold to muffler needs to be replaced, would like to replace "head pipe" with one W/O the converters, I've removed all the "smog" stuff, as I live in an area where there are no inspections for emmissions, does any one know if say a stock "Y" pipe from say a '75 Torino w/302 will fit?? thanks!!!!!-Supercab