SirRobyn0
Full Access Member
- Joined
- Dec 6, 2019
- Posts
- 6,755
- Reaction score
- 11,402
- Location
- In the woods in Western Washington
- First Name
- Rob
- Truck Year
- 1984
- Truck Model
- C20
- Engine Size
- 305
Check this out guys: https://shop.advanceautoparts.com/r...=1274511&keyword=+battery +group +size +chart
Group 24 is probably the closest in terms of size to the group 78 that the truck originally came with. When my GRP 78 battery is done, I plan to go to a group 27. In most battery lines the 24 and 27 batteries have very similar CCA ratings, but the 27 typically has a higher reserve compacity, which basically means you can drain it for longer before it's dead.
My rule of thumb has always been to run the largest battery I can fit under the hood, so my Dodge truck has a GRP 27, it calls for a 24, my Jeep calls for a 34, and I've put a 27 in it, ect.
Group 24 is probably the closest in terms of size to the group 78 that the truck originally came with. When my GRP 78 battery is done, I plan to go to a group 27. In most battery lines the 24 and 27 batteries have very similar CCA ratings, but the 27 typically has a higher reserve compacity, which basically means you can drain it for longer before it's dead.
My rule of thumb has always been to run the largest battery I can fit under the hood, so my Dodge truck has a GRP 27, it calls for a 24, my Jeep calls for a 34, and I've put a 27 in it, ect.