Battery size?

dammstrate

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The sveral places I looked indicated a group 24 battery for my 65 Newport. Took the old one out, and the battery try certainly is long enough
for a group 27. Was the 27 and option with an upgraded alternator or some such thing, and the tray has to be long enough for both?
 
The sveral places I looked indicated a group 24 battery for my 65 Newport. Took the old one out, and the battery try certainly is long enough
for a group 27. Was the 27 and option with an upgraded alternator or some such thing, and the tray has to be long enough for both?

The standard battery size for the 1965 Chrysler models, including Newport, was the BCI Group 27. It was optional in the Dodge and Plymouth C-bodies and B-bodies. The tray is long enough to accommodate either battery, except in A-bodies.

Group 24 can be used in place of Group 27 with less potential reserve power, depending on the brand, etc. Modern sources may list the Group 24 for the application as the use and availability of the Group 27 battery has diminished.

Battery listing from the 1965 Chrysler Parts Catalog is shown in the following image:

Screenshot 2026-01-18 12.59.31 PM.png
 
The group 24, 27 and 34 batteries have practically identical widths (6.75 - 6.9 inches).

The 24 and 34 have identical length (10.75) but the 24 is an inch taller (8.15 vs 7.15). Interestingly the 24 is only 2 lbs heavier than the 34 (38 vs 40 lbs).

The 27 is the same height as the 24 (8.15 inches) but is 1.25 inches longer (12 inches). The 27 is also 9 lbs heavier than the 24.

I buy the 34 battery because I can put it in my other cars when I need to scrounge a battery and locally I can buy a budget version of the 34 whereas the 27 and 24 only come in a single more expensive version.
 
IF you want a completely "black" battery, Interstate Battery has them. Three different warranty levels and prices, usually.

ANY battery, Grp 24 or 27, will have a good bit more power than the OEM batteries of 1965. So that "small" grp 24 battery will have more power (CCA) than the grp 27 battery of old, by observation.

Interstate supplies OEM-level batteries to our local Toyota, Lexus, Hyundai dealerships. ALL are black batteries, only the stickers applied to them identify the various carline dealerships they are sold to. You can check their website for local walk-in stores.

I'm NOT promoting Interstate, just advising of their "black" batteries.

Personally, I always liked the look of a Grp 27 battery under the hood. Fills out the battery tray nicely, as a Grp 24 looks like "corner cutting" sometimes. Which, as an observer, makes me wonder "What else did the owner cut corners on?" IF that might be a consideration.

Enjoy!
CBODY67
 
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