Any car battery that will fit on the tray should work, nothing special. I have a Duracell HP24F in my '56 3100 with a 350 sbc, should work fine for you.
Mike B
Mike Boteler
1956 Chevy 3100 Resto Rod 1952 Willys M38 Army Jeep 1983 Jeep CJ7 Laredo 1984 Jeep CJ7 +++++ Silver Spring, MD