tried starting my rebuilt 355 with my battery from my 05 impala, no go, wanted to start then battery quit and no starter clicking.

what battery cranking amps should i get for thing? see about 10 listings at autozone from 785 cranking amps to 1000.

 

I go to my local BiMart store and buy their 84 month batteries in 800 cranking amps. They're $60, and free replacement the first year, prorated after that. I don't spend money on exotic batteries.

 

Depending on the cold weather you will want as he suggested in 800 Cold Crank Amps. I have used 650 in mine but in very cold 800 would have been nice.

 

The bigger the battery the better... I put in at least 800CCA... it helps to start it and has more punch... plus it makes it so the Alt does not have to work as hard to build the battery back up... At least that is what our Interstate guy tells me.

 

In my part of the world it isn't even an option. 800 or even 1000 to get through the winter. I have seen batteries die after sitting for as little as a weekend here.

 

I believe 750 was what came stock...so like pretty much everyone's said, 800+ and you should be good to go.