The parts book list 4 different ones for a 74 b body with a 360. with or w/o air cond, hp 4bbl or 2 bbl carb, l/n alt or not. I `m pretty sure I have a 73 340 charger non a/c dipstick if it is the same as the one you need. How long is your dipstick tube? Is it straight or does it have a bend in it?