What size battery is needed for a 68 455 in 12 volts? Group#? CCA??

 

It depends on what tray is in there. It's either going to be a group 24 or a group 27.

EDIT: I was assuming this was in a 68 Olds, but then again.....

What car are you putting it into?

 

Its going into my Hudson custom. I just wanted to make sure I have the right group size and CCA. Tray size does not really matter as I am going to make one in the trunk. I have a brand new 24F with 582 CCA. Just was not sure that 582 CCA would be enough.

 

Not really. That sounds like a VERY cheap battery. I'd get a group 34 with 800cca and 1000ca and be done with it. That will give you all the cranking power you will need and have plenty of reserve if the charging system takes a dump.

http://www.oreillyauto.com/site/c/se...keyword=34extj