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>>> 1968 Production Quantity Question ??? <<<

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Old Oct 21, 2006 | 10:16 PM
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Default >>> 1968 Production Quantity Question ??? <<<

1968 total production:

Base Corvette Sport Coupe 9,936
Base Corvette Convertible 18,630


those are the production numbers for 1968 coupes & converts
if they made only 1932 cars with 427 / 400 out of TOTAL production of 28,566

how would you or could you find out how many converts only were made with the 427/400 is there any way to figure that out ?
Just Curious ?

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Old Oct 21, 2006 | 11:18 PM
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No way to figure it out, as data was never cross referenced across options. For 68 its unusual in that it was the only year that the C-3 convertible outnumbered the coupes by almost 2 to 1. Its an acceptable guess that by the same majority there would be the same ratio applied to the engine options as well. The strict math gives 1259 conv 400's. Either way this will not make one body type more or less valuable than another. A 435 car in original condition is always worth more as a ragtop just as a 300 horse car is. A 400 is a rare car because the carbs coming out from Holley, the 3310 specifically, acheived the same performance with greater simplicity. The 435 car was the only realistic way to get the solid lifter square port car built for you and then swap the manifold out at the dealer.

Today, the biggest issue in my mind is how many 68's remain? There is a forlorn damaged 300 hp black coupe parts car on ebay...how many ended up like that poor thing?
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Old Oct 22, 2006 | 06:47 AM
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Originally Posted by international blue
For 68 its unusual in that it was the only year that the C-3 convertible outnumbered the coupes by almost 2 to 1.

Think I remember reading that the Coupe was not available or was under limited availability early in the year so this made the Convertible numbers go up. Would like to know of some early Coupe build dates.
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Old Oct 23, 2006 | 12:42 AM
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Originally Posted by 427SIXPACK
1968 total production:

Base Corvette Sport Coupe 9,936
Base Corvette Convertible 18,630


those are the production numbers for 1968 coupes & converts
if they made only 1932 cars with 427 / 400 out of TOTAL production of 28,566

how would you or could you find out how many converts only were made with the 427/400 is there any way to figure that out ?
Just Curious ?

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...try 1932 x .66 as an estimate. This would be a "theoretical" estimate.
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Old Oct 23, 2006 | 01:38 AM
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Originally Posted by Paul Borowski
...try 1932 x .66 as an estimate. This would be a "theoretical" estimate.
please explain ? why .66 ?
just curious how you arrived at that amount ?
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Old Oct 23, 2006 | 09:13 AM
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Originally Posted by international blue
No way to figure it out, as data was never cross referenced across options....

The mathematical process is extrapolation. Extrapolation can give you something to daydream about, but without any actual documentation to back it up, it's a guestimate.
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Old Oct 23, 2006 | 11:58 AM
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I would guess that if someone were to buy a Corvette (in 1968) to use for drag racing, they would buy a 427 in a Convertible. If this is true, the ratios of 427 would probably be skewed more towards the Convertible bodies.
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Old Oct 23, 2006 | 02:02 PM
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Originally Posted by 68/70Vette
I would guess that if someone were to buy a Corvette (in 1968) to use for drag racing, they would buy a 427 in a Convertible. If this is true, the ratios of 427 would probably be skewed more towards the Convertible bodies.
vert vs coupe ? curious why you would say you would choose a vert for drag racing over a coupe ? is there more wind drag without a top & arent verts heavier then the coupes ?
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Old Oct 23, 2006 | 03:06 PM
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Originally Posted by 427SIXPACK
please explain ? why .66 ?
just curious how you arrived at that amount ?
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Two out of every three 68s was a vert. 66%.
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Old Oct 23, 2006 | 03:36 PM
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Originally Posted by 427SIXPACK
vert vs coupe ? curious why you would say you would choose a vert for drag racing over a coupe ? is there more wind drag without a top & arent verts heavier then the coupes ?
ZIXXX PACKER
The Convertible with the Hardtop is the most aerodynamic.
You could order the Hardtop in place of the soft top for no extra cost and then would weigh about the same as the Coupe.
Plus Hartop Convertible race cars just look bad a$$.
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Old Oct 23, 2006 | 03:39 PM
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Originally Posted by 427SIXPACK
vert vs coupe ? curious why you would say you would choose a vert for drag racing over a coupe ? is there more wind drag without a top & arent verts heavier then the coupes ?
ZIXXX PACKER

The following are 1969 weights ... 1968 should be similar:

base curb weight: 350/300 engine w/ 3 speed standard transmission-
base weight coupe: 3245#
base weight convertible: 3250#

RPO L36: add 157#
RPO L71: add 177#
RPO L46: add 1#

4 speed transmission: subtract 4#
turbo hydramatic trans: add 62#
power windows: add 10#
Hardtop (with folding top): add 52#
A/C: add 95#
Power brakes: add 10#
HD brakes: add 4#
Dual exhaust side mounted: subtract 30#
tilt and telescope steering: add 11#
power steering: add 26#
AM/FM radio: add 16# (stereo add another 6#)
wheel covers: add 18#

Source: AMA specifications, 10/15/68
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Old Oct 23, 2006 | 06:17 PM
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Originally Posted by FrankVincent
The following are 1969 weights ... 1968 should be similar:

base curb weight: 350/300 engine w/ 3 speed standard transmission-
base weight coupe: 3245#
base weight convertible: 3250#

RPO L36: add 157#
RPO L71: add 177#
RPO L46: add 1#

4 speed transmission: subtract 4#
turbo hydramatic trans: add 62#
power windows: add 10#
Hardtop (with folding top): add 52#
A/C: add 95#
Power brakes: add 10#
HD brakes: add 4#
Dual exhaust side mounted: subtract 30#
tilt and telescope steering: add 11#
power steering: add 26#
AM/FM radio: add 16# (stereo add another 6#)
wheel covers: add 18#

Source: AMA specifications, 10/15/68

HEY.........can we see more pics of whats peeking outa your garage ??? is that your car in the AVATAR ??? love the stripe.......pics please ?
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Old Oct 24, 2006 | 11:33 AM
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Originally Posted by 427SIXPACK
vert vs coupe ? curious why you would say you would choose a vert for drag racing over a coupe ?
ZIXXX PACKER
My thought that Convertibles might be preferred was based on an article I read in the latest edition of the NCRS Restorer magazine. They had an aritcle about a restored 1967 L88 Convertible. The author of the article said (not an exact quote) that in 1967, people who bought Corvettes often did so with the idea of drag racing them and Convertibles were the body style of choice. Apparently in those days there was a NHRA A factory stock class and a Corvette was one of the cars to buy to run in this class.

.....About the articles L88 car. It ran right off the show room floor at 11.46 seconds and about 124 mph in the quarter mile. The driver, by learning to control the wheel spin later got the quarter mile time to about 11.11 seconds and final speed was still about 124/125 mph. (These times are from my memory.) Anyhow...the car ran 7 inch factory stock tires!!! The article said the L88 could smoke the tires half way down the track.
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Old Oct 24, 2006 | 02:07 PM
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A potential drag racer would be very unlikely to order the L-68 (400 hp with tripower). That is not a high performance engine.



(The 67 L-88 written up in the Restorer mag - very cool article BTW! - raced with 7" SLICKS, according to the article)
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Old Oct 24, 2006 | 02:34 PM
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Originally Posted by wfo76
Think I remember reading that the Coupe was not available or was under limited availability early in the year so this made the Convertible numbers go up. Would like to know of some early Coupe build dates.

1968 Corvette coupe production did not get underway until January 1968. Problems with roof panel design delayed production, so convertibles were built from model year inception of August '67 thru December '67 only. That's why the production of coupes is low.
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Old Oct 24, 2006 | 03:48 PM
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[QUOTE=PRNDL]A potential drag racer would be very unlikely to order the L-68 (400 hp with tripower). That is not a high performance engine.

it is........... compared to a 350/350 & not too many L88's were available so i'm guessing that they would have had to settle for a lousey 427 / 400 or 435........... LIFE SUCKS !!!
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Old Oct 24, 2006 | 07:10 PM
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Don't forget the 427-390HP cars!
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To >>> 1968 Production Quantity Question ??? <<<

Old Oct 24, 2006 | 07:50 PM
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[QUOTE=PRNDL]A potential drag racer would be very unlikely to order the L-68 (400 hp with tripower). That is not a high performance engine.


I'm curious... Why would a 400hp tripower not
be considered a high performance engine?
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Old Oct 24, 2006 | 08:10 PM
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[QUOTE=seacliffe301]
Originally Posted by PRNDL
A potential drag racer would be very unlikely to order the L-68 (400 hp with tripower). That is not a high performance engine.


I'm curious... Why would a 400hp tripower not
be considered a high performance engine?

no idea.........waiting on his reply.............even says HI -PERF on the motor
hummmmmmmmmmmmmmmmmm oh yeah sorry 390 guys you too !!
lets await his reply
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Old Oct 24, 2006 | 11:19 PM
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No worries. I'm not insulted.
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