Mallory Dual Point Dizzy for a Chrysler & Desoto Flathead 6. This one is a YC 201 BX. This one is for the 25" flathead 6 engines. This will not work on the 23" Mopar flathead 6 engines. I have never used it. It actually looks never used. But I won't say it's new, even though the original owner said it was never mounted. It needs points and a rotor. Comes with box. Points and rotor are available in eBay. Free Shipping in the lower 48 states. You won't find another one!