If getting a Battery cover for your 67 GT-500, would this be the one to get over the one with the Red caps?
Have to go this route as my antique battery died on me.
Quote from: csheff on July 20, 2021, 11:22:32 AM
If getting a Battery cover for your 67 GT-500, would this be the one to get over the one with the Red caps?
Have to go this route as my antique battery died on me.
It depends on if your car has the heavy duty battery option or not. The Marti report will indicate if it has that option . AC equipped automatically triggered the option.
Thanks Bob,
Marti shows Heavy duty Batt but it doesn't show on Shelby American invoice. So what would I go by?
Red caps for your car. It is on the car's SVO sheets.
Dave
If you have a 27 and want to put the line further, here is an idea. I did it on my 69 during the covid19 confinement. If interested, I will take the heat shield off and take more pic of how I have attach the poles
Patrick
Heres another option
This is a new Motorcraft group 27, I found the caps and decals online for $24
(http://www.saacforum.com/gallery/8-200721201623.jpeg)
Quote from: csheff on July 20, 2021, 11:58:22 AM
Thanks Bob,
Marti shows Heavy duty Batt but it doesn't show on Shelby American invoice. So what would I go by?
Quote from: GT350DAVE on July 20, 2021, 12:07:21 PM
Red caps for your car. It is on the car's SVO sheets.
Dave
+1 .Marti report and SVO sheet indicate are more more in depth then the typical invoice is why you you don't see it there most likely.
Shelbypat thats a good idea making that old dead repo autolite 27f battery a battery that just keeps on given especially when the battery heat shield hides the cutaway area. How long did it take u to do the cutout?
2 hours for the cut out and an other 2 hours to fit the other battery.
Patrick
So heavy duty batteries have the red caps? And aren't they group 24 batteries as well for 67?
Quote from: csheff on July 21, 2021, 10:04:03 AM
So heavy duty batteries have the red caps? And aren't they group 24 batteries as well for 67?
Yes. The 22's normally are the ones that have yellow caps. I'm not sure what that reproduction topper with yellow caps is supposed to be for, although all the parts vendors have no problem advertising it as correct for 65-67.
Quote from: CharlesTurner on July 21, 2021, 10:48:15 AM
Quote from: csheff on July 21, 2021, 10:04:03 AM
So heavy duty batteries have the red caps? And aren't they group 24 batteries as well for 67?
Yes. The 22's normally are the ones that have yellow caps. I'm not sure what that reproduction topper with yellow caps is supposed to be for, although all the parts vendors have no problem advertising it as correct for 65-67.
22F are only used on base GT 350's. A GT 500 car without the heavy duty battery option got a 24 f with yellow caps . The cap color indicated the lower capacity of the battery. The capacity was also in raised letters on the side of the case but that is very difficult if not impossible to see once in a car. There is no 22f topper being made that I am aware of
Quote from: Bob Gaines on July 21, 2021, 11:04:57 AM
22F are only used on base GT 350's. A GT 500 car without the heavy duty battery option got a 24 f with yellow caps . The cap color indicated the lower capacity of the battery. The capacity was also in raised letters on the side of the case but that is very difficult if not impossible to see once in a car. There is no 22f topper being made that I am aware of
Got it, so '67 GT500 w/out a heavy duty battery option. What are the production numbers for those cars?
22F are only used on base GT 350's. A GT 500 car without the heavy duty battery option got a 24 f with yellow caps . The cap color indicated the lower capacity of the battery. The capacity was also in raised letters on the side of the case but that is very difficult if not impossible to see once in a car. There is no 22f topper being made that I am aware of
According to my Marti Report, my GT-350, a base model, came with a heavy duty battery. Could it be that later in production putting one size battery was just easier than specifying two different batteries?
Quote from: CharlesTurner on July 21, 2021, 11:23:41 AM
Quote from: Bob Gaines on July 21, 2021, 11:04:57 AM
22F are only used on base GT 350's. A GT 500 car without the heavy duty battery option got a 24 f with yellow caps . The cap color indicated the lower capacity of the battery. The capacity was also in raised letters on the side of the case but that is very difficult if not impossible to see once in a car. There is no 22f topper being made that I am aware of
Got it, so '67 GT500 w/out a heavy duty battery option. What are the production numbers for those cars?
I also believe based on factory documentation and survivor observation that when a heavy duty battery option was activated that it also triggered the change to a higher amp alternator (42 orange stamp -55 red stamp ) and a different regulator (C5AF silver stamp to C5TF yellow stamp) . You would have to ask Dave Mathews for production numbers info. I do know that a lot more of the 67 GT 500's anyway had the heavy duty battery option added for no apparent reason in later production. My suspicion is that the powers to be realized into production that a hot big block can take a lot of power to crank over and decided it made more sense to add the option instead of waiting for a customer compliant/warranty issue. This line of thinking is more likely when taking into consideration the progression of change in later year Mustang big block batteries. The higher capacity group 24 red capped marked battery became standard on all big block Mustangs/Shelby's in 68 and into a even higher capacity group 27 battery for 69/70.
Quote from: greekz on July 21, 2021, 12:10:47 PM
22F are only used on base GT 350's. A GT 500 car without the heavy duty battery option got a 24 f with yellow caps . The cap color indicated the lower capacity of the battery. The capacity was also in raised letters on the side of the case but that is very difficult if not impossible to see once in a car. There is no 22f topper being made that I am aware of
According to my Marti Report, my GT-350, a base model, came with a heavy duty battery. Could it be that later in production putting one size battery was just easier than specifying two different batteries?
It is hard to say given the evolution of the cars in 68 and 69/70. Although all 68 GT350's as far as I know got the group 24 heavy duty battery the 69/70 GT350 which ( had a larger 351 engine) had a group 22 ,group 24 and even a GT350 group 27 battery. The 69/70 group 22 battery would seem to go against the "just easier then specify two different batteries theory". I am not saying that isn't the case just that it seems less likely given the usage in 69/70 in the same way as done in 67. It is hard not to take the big picture into account when discussing these theories.
Quote from: Bob Gaines on July 21, 2021, 12:37:32 PM
Quote from: greekz on July 21, 2021, 12:10:47 PM
22F are only used on base GT 350's. A GT 500 car without the heavy duty battery option got a 24 f with yellow caps . The cap color indicated the lower capacity of the battery. The capacity was also in raised letters on the side of the case but that is very difficult if not impossible to see once in a car. There is no 22f topper being made that I am aware of
According to my Marti Report, my GT-350, a base model, came with a heavy duty battery. Could it be that later in production putting one size battery was just easier than specifying two different batteries?
It is hard to say given the evolution of the cars in 68 and 69/70. Although all 68 GT350's as far as I know got the group 24 heavy duty battery the 69/70 GT350 which ( had a larger 351 engine) had a group 22 ,group 24 and even a GT350 group 27 battery. The 69/70 group 22 battery would seem to go against the "just easier then specify two different batteries theory". I am not saying that isn't the case just that it seems less likely given the usage in 69/70 in the same way as done in 67. It is hard not to take the big picture into account when discussing these theories.
Basically then, if I am understanding correctly, almost any battery series is possible. I suppose saying most cars (GT-350/GT500) in 1967 came with battery series X, based on their equipment and options would be the norm. However, sometimes other combinations of equipment and options, or lack of, would not necessarily dictate the battery series that was installed.
Quote from: greekz on July 21, 2021, 12:57:12 PM
Quote from: Bob Gaines on July 21, 2021, 12:37:32 PM
Quote from: greekz on July 21, 2021, 12:10:47 PM
22F are only used on base GT 350's. A GT 500 car without the heavy duty battery option got a 24 f with yellow caps . The cap color indicated the lower capacity of the battery. The capacity was also in raised letters on the side of the case but that is very difficult if not impossible to see once in a car. There is no 22f topper being made that I am aware of
According to my Marti Report, my GT-350, a base model, came with a heavy duty battery. Could it be that later in production putting one size battery was just easier than specifying two different batteries?
It is hard to say given the evolution of the cars in 68 and 69/70. Although all 68 GT350's as far as I know got the group 24 heavy duty battery the 69/70 GT350 which ( had a larger 351 engine) had a group 22 ,group 24 and even a GT350 group 27 battery. The 69/70 group 22 battery would seem to go against the "just easier then specify two different batteries theory". I am not saying that isn't the case just that it seems less likely given the usage in 69/70 in the same way as done in 67. It is hard not to take the big picture into account when discussing these theories.
Basically then, if I am understanding correctly, almost any battery series is possible. I suppose saying most cars (GT-350/GT500) in 1967 came with battery series X, based on their equipment and options would be the norm. However, sometimes other combinations of equipment and options, or lack of, would not necessarily dictate the battery series that was installed.
67 GT-350/GT500 came with battery series X, based on their equipment and options . The exception to that would be if the car had the heavy duty battery option. How the option was applied is still a unanswered question however the documentation is available on the Marti report or Dave Mathews to determine if a given car had what battery.
IIRC - Thought there were some "notes" from meetings at Ford or SA that all '67 (Shelby's) would be getting 24F versions at some point and the 22F was not going to be installed... will have to look later, have to run now.
Maybe someone else saw/has that too?