It's easier than you think to gain more space in your hot rod by using two 6 V Optima batteries that take up half the space of a regular battery along with Johnson's Hot Rod Shop 6 V Optima battery mounts. These 6 V Optima battery mounts are machined from 6061 aluminum and are sold in pairs, so you can utilize both sides in a coupe or roadster, or mount batteries behind the seat in a sedan or coupe applications. Other mounting locations are also possible to allow you to build your dream hot rod your way.