52 Ford with 239 Flathead...Need some big help...

[Bumps52Ford]

So, I bought a 6V battery for my pickup and got it put in and when I turn the key the fans turn on but nothing else happens when I try to crank it. I did not expect it to start after sitting for almost 20 years. I was hoping it would at least try to crank but it did not. I turned the crank by hand and it does spin so its not locked up. Anyone point me in the direction to atleast start? This is my first vehicle older than a 96, so everything is completely new(thats the understatement of the century) I appreciate any and all information somebody can give me. Thanks guys!!!!

Joshua

I cant change the title, but it is not a flathead it is a mid 60's 289.