69 L-71 authentication

[Dave C.]

I'm having a car inspected for me tomorrow, by a member in California, I'm more familiar with mid years, just wondered what to look for on a 69, that would have been present from the factory, on an L-71 car? Do C3 s have a label on the back of the instrument cluster, like C2s, any other clues would be appreciated.
also I would like to have the tank sticker verified by the NCRS , how long does this process take? I'll attach a picture of the sticker here for any opinions.

[Mark A.]

Re: 69 L-71 authentication

Sometimes there was an extra tank sticker behind the instrument panel, or under the console etc. But not always. The man to talk to on the sticker verification is Al Grenning.

[Guest]

Re: 69 L-71 authentication

NCRS Tanker Sticker Document validated should take about a week or so, talk to Tim Gilmore

[Joe L.]

Re: 69 L-71 authentication

I'm having a car inspected for me tomorrow, by a member in California, I'm more familiar with mid years, just wondered what to look for on a 69, that would have been present from the factory, on an L-71 car? Do C3 s have a label on the back of the instrument cluster, like C2s, any other clues would be appreciated.
also I would like to have the tank sticker verified by the NCRS , how long does this process take? I'll attach a picture of the sticker here for any opinions.

Dave------

Yes, C3's do have a label on the back of the gauge panel. However, a gauge panel could certainly be transferred from one car to another.

From a cursory look, the tank sticker appears authentic to me.

[Dave C.]

Re: 69 L-71 authentication

Thanks for the replies , any idea what the two letter code on the gauge label might be for a 6500 rpm redline?, I was hoping I might get a bit more info here on what to look for, I'm getting the car inspected today. I'm assuming one would look for TI ignition ( was this mandatory with L-71 in 69 ?) F-41 suspension, would the front sway bar be 15/16" as in 67 ? Rear sway bar , caps on the half shaft u-joints, is there anything different about the fuel line like the 90 degree bend on a 67?

[Joe L.]

Re: 69 L-71 authentication

Thanks for the replies , any idea what the two letter code on the gauge label might be for a 6500 rpm redline?, I was hoping I might get a bit more info here on what to look for, I'm getting the car inspected today. I'm assuming one would look for TI ignition ( was this mandatory with L-71 in 69 ?) F-41 suspension, would the front sway bar be 15/16" as in 67 ? Rear sway bar , caps on the half shaft u-joints, is there anything different about the fuel line like the 90 degree bend on a 67?

Dave-----

I believe that TI was mandatory with 1969 L-71. F-41 was not a mandatory option with F-41. 15/16" front sway bar was used for all F-41. All original big blocks had a rear sway bar and cap-type stub axles. Any of these things can be rather easily added to any 1969, though.

All 1969's except those equipped with Holley carbs (i.e. L-68, L-71, L-88) had a 1/4" fuel return line. Holley carb applications did not.

Offhand, I do not know what the broadcast codes were for the various gauge clusters.

[Dave C.]

Re: 69 L-71 authentication

Thanks Joe, yes I just ran across the fuel line point in an article on the web.

[Curt S.]

Re: 69 L-71 authentication

I believe only L71 and L88 cars used the 1100882 alternator. Maybe the 1100884 but I am unsure about that usage.

[Dave C.]

Re: 69 L-71 authentication

I believe only L71 and L88 cars used the 1100882 alternator. Maybe the 1100884 but I am unsure about that usage.

Thanks for that, unfortunately I think the alternator has been changed, but I will check

[Joe L.]

Re: 69 L-71 authentication

Thanks for that, unfortunately I think the alternator has been changed, but I will check

Dave-----

Very unfortunate but all-too-often the way it is. The 1969 alternators are among the rarest (and, consequently, expensive) of all Corvette alternators and I'm not just talking about "numbers". The 1969 alternators have drive end and split ring end case halves which are unique to 1969 and, possibly, very early 1970.

[Dave C.]

Re: 69 L-71 authentication

Well, dodged a bullet there, submitted the tank sticker in to the document validation service, Tim Gilmore was awesome, he jumped on it right away and sure enough it's a fake. Thanks to Tim, and fellow NCRS member Micheal Gorosh, who was kind enough to inspect the car for me .

[Michael G.]

Re: 69 L-71 authentication

Well, dodged a bullet there, submitted the tank sticker in to the document validation service, Tim Gilmore was awesome, he jumped on it right away and sure enough it's a fake. Thanks to Tim, and fellow NCRS member Micheal Gorosh, who was kind enough to inspect the car for me .

Glad I could be of assistance, Dave. You certainly did dodge a bullet and a high caliber one at that. The seller was real piece of work; when I asked how he was so sure it was real, he told me because he had dropped the tank and removed the sticker himself. The car is back on eBay and already bid up to more than it's worth with 6 days left. Some.poor guy or gal is gonna be really ticked off in a few weeks ...

[Bob W.]

Re: 69 L-71 authentication

Joe, When you say 1969 alternators are the rarest is this for both big and small blocks?

Thanks Bob

[Joe L.]

Re: 69 L-71 authentication

Joe, When you say 1969 alternators are the rarest is this for both big and small blocks?

Thanks Bob

Bob------


They are among the rarest. There might be a few in the Corvette world that are rarer. However, those are primarily rare due to "numbers" and not configuration. Some of the 1970-71 are equally rare, mostly due to numbers but also configuration.

[Bob W.]

Re: 69 L-71 authentication

Joe Thank you for your quick reply.

Bob