What size battery, Amos, CCA, CA

[AnthonyG]

Hi all! I need a battery for my ‘49 8BA w Merc crank, domed pistons probably 150ish HP. Suggestions?

[Bob C]

Is this for the 1935 in your other thread or a 1949?
Is the battery under the floor?

[tubman]

Get an Optima Red Top 6 volt. 800 CCA and all of mine have lasted well over ten years. Kind of expensive (about $200) and funny looking as well. If that bothers you, you can get a Faux case and top that will make it look like a regular battery.

When you factor the longer life with the extra expense, they're not that much more.

[AnthonyG]

The same car Bob. It’s a ‘35 w an 8BA with some performance upgrades. I left the battery under the floor partially under the front seat.

[AnthonyG]

Tubman, its converted to neg ground 12V. I had a red top 12V 800 CCA & it lasted 10 plus. This is the replacement for that.

[Kube]

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I'm with Denny on this. An Optima can be mounted beneath the floor without modifications. It can be mounted at an angle.
I did this recently in a '34 as well as a '36.
They do last for many years and deliver much more CCA's than an acid type battery.

[AnthonyG]

What size should i get? Is this sizing info good for the 8BA-DieHard Marine Starting Battery: 24M Group Size, 800 CCA, 1000 CA, 135 Minute Reserve Capacity? I've read the marine batteries are better for keeping charged and charging?

[AnthonyG]

Is this specificity good for my 8BA?800 CCA, 1000 CA, 135 Minute Reserve Capacity?

[tubman]

You should be able to drive home with that if you happen to run out of gas.

[AnthonyG]

thx Tubman!!!