Throttle Cable Knob

[CountofMonteCarlo84]

Hello all. This is probably an easy question for you guys. I am missing what I believe to be the throttle cable knob in the dash on my 1957 3100 (see photo below). Since I have an LS1 I do not really need this for functionality, but I do not like having an empty hole there. All of the aftermarket throttle cables obviously have the cable attached. Rather than paying a little more for this one and having to clip the cable, can I buy the cheaper headlight knob that has the rod on it? It looks like it will need to have a rod to fit and I was wondering if the rod on the headlight knob fits the hole. If not, can you give me a link on brothers to an alternative knob? Thanks a bunch.