Agree with WE b OLD,
The Red Top Optima Model 3478DT Red 34/78 fits well in the original battery box of our 1952 Chevy 1/2 ton pickup. A bit snug but like it that way. This battery has a CA of 1000 and a CCA of 800. Just replaced it this year with the original lasting 10 years. The size is 6 3/4 by 10 with a height of 7 inches. I cannot use the original hold down because I use a battery disconnect that I can reach from reaching up from below the running board to disconnect the battery during storage. Don't have to remove sill plate or take up floor mat to disconnect. Hope helps. Chuck 52
