70 LT-1 T60 hd battery

[Mike G.]

did the lt1's have the t60 heavy duty battery like the ls5? i know they had the 61 amp alternator but dont know about the battery.

[Chuck S.]

Re: 70 LT-1 T60 hd battery

did the lt1's have the t60 heavy duty battery like the ls5? i know they had the 61 amp alternator but dont know about the battery.

The heavy duty battery was regular production option (RPO Code T60) available to anyone ordering a 70 Corvette...assuming they had the $15.80.

Edit: My mistake...you're asking if it was standard equipment on the LT1. We'll have to wait for an LT1 expert.

[Mike G.]

Re: 70 LT-1 T60 hd battery

ok thanks, just wondered if it was standard on the lt1 since the hd alternator was standard. looks like 165 people ordered it other than the 4473 people that got it with the 454

[Kenneth B.]

Re: 70 LT-1 T60 hd battery

did the lt1's have the t60 heavy duty battery like the ls5? i know they had the 61 amp alternator but dont know about the battery.

My 70 LT-1 had a warrenty card & I have the battery. It's a R79. Car has 19000 MI. Got it from the original owner. Could be he replaced it. Who knows. What dose the JM say.
KEN

[Mike G.]

Re: 70 LT-1 T60 hd battery

jm said it was std on ls5 and option on the rest. i guess it was just that. mine has the hd battery also but not sure if it was original.

[Chuck S.]

Re: 70 LT-1 T60 hd battery

...What dose the JM say?...

I wish I had thought of that, Ken

TIM&JG says heavy duty batteries standard on big blocks, optional (T60) on small blocks. Eventhough LT1 is a Mighty Mouse, I read that as being an option only on LT1s.

[Chuck S.]

Re: 70 LT-1 T60 hd battery

jm said it was std on ls5 and option on the rest. i guess it was just that. mine has the hd battery also but not sure if it was original.

After all these decades, I'm certain it's not the one that came in it. If it's an R89W, it's either a repro, or it's an NOS dry charge battery that someone paid an arm and a leg to own.

[Kenneth B.]

Re: 70 LT-1 T60 hd battery

I wish I had thought of that, Ken

TIM&JG says heavy duty batteries standard on big blocks, optional (T60) on small blocks. Eventhough LT1 is a Mighty Mouse, I read that as being an option only on LT1s.

CHARLES
TERRY M. should be in on this.I let him use my battery when he had his LT-1 judged back in the day.
KEN

[Chuck S.]

Re: 70 LT-1 T60 hd battery

CHARLES
TERRY M. should be in on this.I let him use my battery when he had his LT-1 judged back in the day.
KEN

I'm pretty sure Terry will have something to add. Your battery wouldn't have to be a heavy duty battery, unless it is an R79W. I presume the standard battery was an R79S, using the same nomenclature as the later R89?

Since Terry has an early car, your original configuration battery would be perfect for his car, heavy duty or not, according to the TIM&JG. The real question in my mind is whether your battery is the ORIGINAL battery installed in St. Louis...if it is, then it's a miracle battery in my opinion.

My 70 LT-1 had a warrenty card & I have the battery. It's a R79. Car has 19000 MI. Got it from the original owner. Could be he replaced it...

This is really interesting to me...maybe it IS a miracle battery. You would think that later service replacements would supercede the R79 with the R89 that was used later in 70 model year production. Edit: Hmmm...maybe not if the terminals were different. Maybe Terry can explain exactly what you have in your car.

[Mike G.]

Re: 70 LT-1 T60 hd battery

the battery is no good. its probably been bad for a couple of decades. the car has been stored since the late 80's the best we can figure.

[Gary J.]

Re: 70 LT-1 T60 hd battery

Should it not say HD Battery on the tank and window sticker if they are available and the real stickers?

[Chuck S.]

Re: 70 LT-1 T60 hd battery

Should it not say HD Battery on the tank and window sticker if they are available and the real stickers?

Yes...If it's an extra cost option as the TIM&JG says for small blocks, it would be shown as a line item on those documents (T60).

If it WAS standard equipment for the LT1 as the OP originally asked, No, you would not see it itemized on the tank and window stickers.

[Kenneth B.]

Re: 70 LT-1 T60 hd battery

I'm pretty sure Terry will have something to add. Your battery wouldn't have to be a heavy duty battery, unless it is an R79W. I presume the standard battery was an R79S, using the same nomenclature as the later R89?

Since Terry has an early car, your original configuration battery would be perfect for his car, heavy duty or not, according to the TIM&JG. The real question in my mind is whether your battery is the ORIGINAL battery installed in St. Louis...if it is, then it's a miracle battery in my opinion.

This is really interesting to me...maybe it IS a miracle battery. You would think that later service replacements would supercede the R79 with the R89 that was used later in 70 model year production. Edit: Hmmm...maybe not if the terminals were different. Maybe Terry can explain exactly what you have in your car.

My LT-I coupe is SN 3893 19000 MI all paper work including window sticker. I bought it from the original owner in 1980.
KEN
PS this battery died along time ago. The thing was dead when I loaned it to Terry. Sorry I mislead you

[Chuck S.]

Re: 70 LT-1 T60 hd battery

My LT-I coupe is SN 3893 19000 MI all paper work including window sticker. I bought it from the original owner in 1980.
KEN

Ken, my point in the last paragraph was that your battery was likely a replacement by the original owner during the time when the R79 batteries were still available from Delco. It's still a remarkable run even for a replacement battery.

If I remember correctly, there was a terminal thread size change in the the later R89 that would make the two batteries (R79/R89) not interchangeable (cable ends wouldn't fit)...if that is the case, Delco would have had to maintain replacement battery supply for both R79 and R89 until the original configurations of both batteries were discontinued.

[Kenneth B.]

Re: 70 LT-1 T60 hd battery

Ken, my point in the last paragraph was that your battery was likely a replacement by the original owner during the time when the R79 batteries were still available from Delco. It's still a remarkable run even for a replacement battery.

If I remember correctly, there was a terminal thread size change in the the later R89 that would make the two batteries (R79/R89) not interchangeable (cable ends wouldn't fit)...if that is the case, Delco would have had to maintain replacement battery supply for both R79 and R89 until the original configurations of both batteries were discontinued.

Thats what I said I was sure he replaced it but this guy was old when I bought the car. The T-TOPS were never out of the car. Maroon/Saddle. I bought the car in 1980
KEN