I got a set of headers given to my by a friend off of his 83 El Camino parts car. They are almost brand new. I am wondering if they will fit on my 87 chevy R-10 4x2 pickup with a 305 and 700r4? No great loss if not but they are nice and I was hoping they might work. I know I need to add an o2 sensor bung. They are not long tube either. The collector is about 4 or 5 inches long.