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Old Nov 9, 2023 | 01:29 PM
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Default 1968 Production numbers

Could anyone tell me how many 68 427 L36 Convertible 4SPD cars were produced? J
ust wondering if its in the rare class
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Old Nov 9, 2023 | 03:15 PM
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Don't know anything about all of what you're looking for, but the Corvette Black Book says there were 7,717 L36 engines built for $200.15 each for 1968 cars.
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Old Nov 9, 2023 | 03:48 PM
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Moved to C3 General for comments.
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Old Nov 9, 2023 | 04:14 PM
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A L36 convertible is NOT rare. In fact, it was one of the most common options. You'd need to provide a list of all of your options to determine how rare your particular car is.
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Old Nov 9, 2023 | 05:13 PM
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The least produced, lowest production numbers for a 427 in 1968 was the L-68 / 400hp Tri - Power with only 1932 engines produced ( both coupes & convertibles as well as automatics & 4spds combined )

REVISED: Excluding the ever elusive, rarely seen, 80 / L88's & 624 / L89 varieties.

Last edited by 427SIXPACK; Nov 10, 2023 at 06:24 PM.
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Old Nov 9, 2023 | 07:10 PM
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Keep in mind that L-68 was not a stand alone engine option (nor was L-89 or ZL-1 in 1969). One first had to order L-36 and then L-68 to get the tripower equipment. The actual option reads “390 TO 400 HP EQUIP”…. It doesn’t read “400 HP TURBO-JET V8” as a stand alone engine would. Both options appear on real window and tank stickers as well.

If you want a better idea of how many L-36 cars were delivered as actual L-36s, reduce the L-36 production numbers (which may or may not be complete/accurate) by the L-68 production numbers (which again, may or may not be complete/accurate).

Same goes for 1968-1969 L-71/L-89 production and 1969 L-88/ZL-1 production.

Regards,

Stan Falenski
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Old Nov 9, 2023 | 08:25 PM
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Originally Posted by Rowdy Rat
Keep in mind that L-68 was not a stand alone engine option (nor was L-89 or ZL-1 in 1969). One first had to order L-36 and then L-68 to get the tripower equipment. The actual option reads “390 TO 400 HP EQUIP”…. It doesn’t read “400 HP TURBO-JET V8” as a stand alone engine would. Both options appear on real window and tank stickers as well.

If you want a better idea of how many L-36 cars were delivered as actual L-36s, reduce the L-36 production numbers (which may or may not be complete/accurate) by the L-68 production numbers (which again, may or may not be complete/accurate).

Same goes for 1968-1969 L-71/L-89 production and 1969 L-88/ZL-1 production.

Regards,

Stan Falenski
This is great info, Stan. That info is not in the plethora of Corvette books that I have (or at least that I noticed - I'll check again). Thanks! I love this forum!
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Old Nov 9, 2023 | 08:30 PM
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welcome
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Old Nov 10, 2023 | 09:36 AM
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I thought that the L-88 and L-89 were the lowest number of 427 engines produced for the 68 year??? Jerry
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Old Nov 10, 2023 | 10:44 AM
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Originally Posted by Tampa Jerry
I thought that the L-88 and L-89 were the lowest number of 427 engines produced for the 68 year??? Jerry
Correct, 80 L88, 624 L89.
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Old Nov 10, 2023 | 11:19 PM
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Originally Posted by 427SIXPACK
The least produced, lowest production numbers for a 427 in 1968 was the L-68 / 400hp Tri - Power with only 1932 engines produced ( both coupes & convertibles as well as automatics & 4spds combined )

REVISED: Excluding the ever elusive, rarely seen, 80 / L88's & 624 / L89 varieties.
The interesting part of that statment is there are only 4500 of them left.
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Old Nov 19, 2023 | 12:54 PM
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Originally Posted by Rowdy Rat
Keep in mind that L-68 was not a stand alone engine option (nor was L-89 or ZL-1 in 1969). One first had to order L-36 and then L-68 to get the tripower equipment. The actual option reads “390 TO 400 HP EQUIP”…. It doesn’t read “400 HP TURBO-JET V8” as a stand alone engine would. Both options appear on real window and tank stickers as well.

If you want a better idea of how many L-36 cars were delivered as actual L-36s, reduce the L-36 production numbers (which may or may not be complete/accurate) by the L-68 production numbers (which again, may or may not be complete/accurate).

Same goes for 1968-1969 L-71/L-89 production and 1969 L-88/ZL-1 production.

Regards,

Stan Falenski
Hello

I saw a lot of tank sticker pics , but never realized this . How exactly would a tank sticker otpion for a L71 look like ?
Can you show a example pic of one, pls ?

Thanks a lot and brgds.
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Old Nov 19, 2023 | 07:41 PM
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Originally Posted by WESCH
Hello

I saw a lot of tank sticker pics , but never realized this . How exactly would a tank sticker otpion for a L71 look like ?
Can you show a example pic of one, pls ?

Thanks a lot and brgds.
Actually, a tank sticker for an L-71 would be pretty simple…. Just the L-71 option listed as 435 HP TURBO-JET V8 in the Engine section.



If the car was additionally ordered with L-89 aluminum heads, the L-71 option would appear as above with L-89 ALUMINUM CYLINDER HEAD EQUIP appearing in the lower section.

That’s the orientation for 1969… 1968 may be reversed (Ed would be able to answer that), but both options would be there.

Regards,

Stan Falenski
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Old Nov 24, 2023 | 08:39 PM
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68's had the L68 and L89 options reversed and on top.




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Old Nov 25, 2023 | 07:14 AM
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Hi

Ok, I understand. L71 was lonely on the sheet, but L89 was double. Thanks.
How was the L88 ? Same as the L89 ? Asking due to the different HP rating, only 430 for the L88 versus 435 for the L71.

Brgds
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Old Nov 25, 2023 | 09:56 AM
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Originally Posted by WESCH
Hi

Ok, I understand. L71 was lonely on the sheet, but L89 was double. Thanks.
How was the L88 ? Same as the L89 ? Asking due to the different HP rating, only 430 for the L88 versus 435 for the L71.

Brgds
The L88 horsepower rating was at an rpm, 5200, below the rpm, 6500, at which it hit maximum horsepower of 500+.
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Old Nov 25, 2023 | 10:00 AM
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Originally Posted by WESCH
Hi

Ok, I understand. L71 was lonely on the sheet, but L89 was double. Thanks.
How was the L88 ? Same as the L89 ? Asking due to the different HP rating, only 430 for the L88 versus 435 for the L71.

Brgds
L-68 required L-36, L-89 required L-71, and ZL-1 required L-88. If you look at the tank sticker that Jonathan posted, you can see that L-71 is clearly listed as 435HP TURBO-JET V8… Other engine options are listed the same way as either TURBO-FIRE(small block) or TURBO-JET(big block) or additionally, with V8 following. L-89 is listed differently (as it isn’t a true “engine” option) as ALUM CYL HEAD EQUIP…. No mention of an engine. L-68 (390 TO 400HP EQUIP) and ZL-1 (ALUM CYLINDER CASE) were the same way.

L-88 was an actual engine option, just like L-71… It was listed as SPECIAL TURBO-JET 427 V8 (at least for part of 1968 and 1969). It didn’t require any “support” option.

Regards,

Stan Falenski

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