Factory T I coils

[Warren F.]

On the '263' transistorized ignition coils, some have 12V embossed and others have 12-V. Can someone verify the difference usages. I'm assuming the 12V style is for '67, '68 & '69. I know the 12-V is used on the '71.

[Timothy B.]

Re: Factory T I coils

Warren,

I would like to add that my original 202 coil for 1967 327/300hp car has 12V embossed and the NOS in the can coil I bought and pulled the string to open has 12-V embossed.

[Wayne M.]

Re: Factory T I coils

Here's my bit. Don't have a 263, but do have an original 202, 207 and 210 (all with the dash between '12 and 'V'. Also have two NOS 207's in the box, that I got at a swap meet in the '90s. They have NO dash. But we have to remember that the '207' was used for at least 15 years (before they started stencilling the number in white paint) as the service replacement for ALL other T.I. coils, as their stock was depleted.

Notice in the pic of my 210 that the dash is more like a dot.

Then there's the whole other subject as to whether the number and voltage emboss should appear high or low on the can; and if low, opposite side from the T.I. decal ?

Aren't we having fun ?

[Warren F.]

Re: Factory T I coils

The reason I was interested in the '263' TI coil is that it is a production factory only coil in this configuration. Never available as a service replacement. I thought maybe some members here with a '67, '68, '69 Corvette that has their original TI '263' coil could tell me which version is on their cars.

[John C.]

Re: Factory T I coils

Warren

The 263 coil on my 68 is 12-V.

The 68-69 JG states a 263 coil should have BR embossed below the 263numbers. I don't have that.

John

[Warren F.]

Re: Factory T I coils

I have never seen a BR embossing either on these '263' coils. Thank you. I hope to hear from some more owners, please.

[Mark D.]

Re: Factory T I coils

I thought maybe some members here with a '67, '68, '69 Corvette that has their original TI '263' coil could tell me which version is on their cars.

Warren,

Below is a tracing of my original 263. There is no - between the 12 and V. Although I purchased this unit for my 69 L89 resto, it is an early take-off from a 67 435. I had it inspected and then cosmetically restored by Dave Fiedler. Let me know if you would like any PICx.

Regards,

Mark

[Jack H.]

Re: Factory T I coils

This has come up before in various judging discussions (12V vs. 12-V emboss). My recollection is we simply don't know if the difference is significant. It may simply say there was more than ONE set of production tooling that churned out coil cases and more than one machine ran in parallel to the other(s).

Seeing as how ignition coils WERE produced at rates in the millions of units per annum, it's hard to swallow the belief there was only ONE set of production tooling! If I remember correctly, the JG books generally make no mention of the mysterious "-" symbol and let things drop there... Personally, I'd accept either version without deduction because I know I don't know and the benefit of the doubt goes to the owner in such cases.

[Warren F.]

Re: Factory T I coils

Mark,

I suspect that the '263' coil for 1967 applications may have used the 12V format. I am starting to think the 12-V was used in later applications.

[Dave S.]

Re: Factory T I coils

Warren

The 263 coil on my 68 is 12-V.

The 68-69 JG states a 263 coil should have BR embossed below the 263numbers. I don't have that.

John

B-R stands for Ballast resistor. Obviously T.I. cars did not have ballast resistors. I've seen many 263 coils but never one with B-R. I think the 68/69 re-write team should consider changing that. I honestlly do not recall if they were 12V or 12-V.
The height if the embossment has been debated with 091 coils for a long time and I'm not sure if any definitive answer was ever arrived at.

[Warren F.]

Re: Factory T I coils

Dave,

What version is the '263' coil you have?

[Mark D.]

Re: Factory T I coils

I think the 68/69 re-write team should consider changing that.

D,

I suspect it will be gone in the next revision.

Mark

[Dave S.]

Re: Factory T I coils

Dave,

What version is the '263' coil you have?

Warren,
I have a 12-V.

[John D.]

Re: Factory T I coils

B-R stands for Ballast resistor. Obviously T.I. cars did not have ballast resistors. I've seen many 263 coils but never one with B-R. I think the 68/69 re-write team should consider changing that. I honestlly do not recall if they were 12V or 12-V.
The height if the embossment has been debated with 091 coils for a long time and I'm not sure if any definitive answer was ever arrived at.

091 Coils: Same senario as the 263's. Some are 091 12V and some 12-V

NOS one in old orange/ white/black box-pull the string = 091 12V
Embossed quite low on the coil. Other 091 coils I have seen or own are ALL embossed low on the coil. My 63, the LWC has nice NOS 091 12V coil. Don't know if it' 12V or 12-V and don't much care as it seems to work fine.

Now I have seen repro 091's that have the embossing up high.
Dale Pearman was really into the 091's and the 107's in the old days. He said I would spend the rest of my life looking for an 091 embossed up high.

Sorry to rob the post but I got interested when Dave mentioned the 091's. Thanks, JD
P.S. Jack Humphrey's post is something to consider as if we think one machine/operator stamped all the coils then we aren't being logical.
Was gonna say smoking good stuff but changed my mind.