What’s the best/correct battery that fits the stock tray? Every parts house website lists group 56 batteries, but I’m always seeing people say group 65 is what to get. Is there a clear answer to that?
Battery size for 83 351w
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looks like the 65 is about 2 inches longer and an inch wider, and inch shorter in height. No ideas abojt terminals
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65 is whats been in every Ford truck of this era I've had, and I've had like...9?
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The correct group size is a 56 however a 65 may fit. Id measure the battery tray and put the largest battery possible
i run a 24R. i think i tried a 65 but it was too big for the tray? i cant remember now. but anyway, 24R works good for me!
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I put a 65 in my 1984 because it’s what all my others run. It’ll fit.
Adrianspeeder
Adrianspeeder
I did some measuring, and it looks like a 65 will just barely squeeze in there.
While I was at it, I realized the PO had put in a group 24 with 650 CCA. The same CCA in 65 is only $50 at Walmart, while 750 CCA goes up to $100 and the $850 CCA is $120.
I’ve read that too high of CCA is detrimental to battery life in hot climates like the Texas coast. Is that true? Or is it with worth it?
While I was at it, I realized the PO had put in a group 24 with 650 CCA. The same CCA in 65 is only $50 at Walmart, while 750 CCA goes up to $100 and the $850 CCA is $120.
I’ve read that too high of CCA is detrimental to battery life in hot climates like the Texas coast. Is that true? Or is it with worth it?
Do you see any issues relating to the higher CCA? I keep seeing online that a higher CCA battery won’t last as long in hot climates
In TX it's more about the heat soak in summer. An average battery will be 850 cranking and 650cca which is fine for a small block but I like more. a super start extreme is 1045 ca 850cca. You want more power when the starter is hot from hours on the highway.
Good to know. So I should get the 850 CCA, 1000 CA one?
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For $20, I'm taking that 1000 amper all day long. I just put an older 65 in one of my fox bodies.
(couldn't believe it fit). It only load tests out to around 500 now (like 8 years old), but that is plenty
for a show car fox body, driven only in perfect weather.
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