Seven Hills Motorcars is
Cincinnati's premier Corvette specialist anda licensed and
registered auto dealer by the State of Ohio. With many years of
focused experience we specialize in 1957 to 1982 Corvettes and other GM
classics. There is no other dealership that can better meet your needs
if you would like to buy, sell, or just find out more information about
your Corvette, Cadillac, Camaro, or Trans Am. Founded in 2005, this is
a very focused operation. We do it because we enjoy it. We are a
collectors and enthusiasts; therefore we look for cars that excite us.
I do not purchase at dealer auctions; each car is hand picked because it
is special or rare and because we like it.
Contact a representative directly:
Seven Hills Motorcars is very
proud to offer this
beautiful 1975 Corvette Convertible in excellent condition and with only
miles. This Corvette looks terrific, runs great, and is an
The Steel Blue (27) over Black (19V) is a very
rare and beautiful color combination that looks great on the car. It
is also the correct and original color combination as verified by the codes on the trim tag, which is pictured
below. This is particularly important on this car as Steel Blue was
a one year only color only available in 1975 and it is the most rare
color with only 1,268 units made.
The low original mileage is
verified not only by the condition of the car, but also the clear
Ohio title, pictured below, showing the mileage as "Actual." Please peruse all of the
photos, video, list of numbers, and other information below to get a true sense of
how nice, clean, and original this Corvette really is.
As a side note, this Corvette is not a dealer auction vehicle.
We hand pick each car after careful inspection. Our
Corvettes come from owners who expect their car to go to someone
that will give the vehicle the same care and attention as they did.
We invite and encourage you to examine the car in person or have the
car inspected. Please take the time to scrutinize each
picture. We photograph each vehicle to the greatest extent so
you can feel confident about your purchase. If you have a
question about the Corvette, just give us a call.
1975 was a
very special year for Corvette, it was the last year of the
C3 body style in which a convertible model was offered. Only
4,629 convertibles were made that year, which is why the
1975 Corvette Convertible is one of the most desirable
models in the entire production run of C3 Corvettes. 1975
was also the first year Corvettes featured High Energy
Ignition (HEI) with no mechanical points; a dramatic
improvement over previous designs.
Please note when checking the numbers that not only do the
correct stampings and casting numbers appear on the parts, but
all of the dates are also chronologically correct. This
means that all of the parts were made and assembled in the
correct order. For example, all of the dates for the
individual engine components and the engine casting date should
obviously precede the assembly date of the engine because the
parts had to be produced before they could be assembled.
All of the parts I checked follow this rule and are dated
first digit, "1," indicated the Chevrolet division of GM.
The "Z" is the series, Corvette. The "87" is the body
style, 2-door sport coupe. The fifth digit is the engine,
4, correct for an L82 car. The sixth digit, "9," indicates
the model year, 1979. The "S" is the plant where the car
was produced, St. Louis. The last five digits are a
sequence number so this is the 14,919th Corvette made for
Body Build Date
"F" corresponds to December, and "03" is the
third day of the
month meaning this Corvette's body build date is February 3, 1975.
"V" means the engine was build in the Flint, MI plant.
The "02" is the second month of year and the
"20" is the twelfth day of the month meaning the engine was assembled on
February 20, 1975. This is correct as it precedes the build
date of the car.
This means the motor was intended for an L48
Corvette with an automatic transmission, which is correct for this car.
Engine Block Casting Number
The engine block has the correct 3970010 casting number.
Engine Block Casting Date
K 28 4
"K" is November, "28" is the twenty-eighth day of the month, and
"4" is the last digit of the calendar year so the engine
block was cast on November 28, 1974.
Engine Block VIN Stamping
The last 6 digits of the car's VIN, 417225, are stamped on
the engine pad and pictured below meaning this engine is
original to this car.
Intake Manifold Casting Number
The intake manifold has the correct 349249 casting number
for a 1975 Corvette.
Intake Manifold Casting Date
B 18 5
"B" is February, "18" is the eighteenth day of the month,
and "5" is the last digit of the calendar year so the intake
manifold was cast on February 18, 1975.
The carburetor has the correct stamping for a 1975 L48
Corvette with an automatic transmission. The "70" is a code
used on all Rochester carbs from 1965-1975. The third digit,
"4," means the carb was built in the 1970's. The fourth
digit, "5," means it was built for the 1975 model year. The
fifth digit, "2," indicates that it is a 4BBL carb. The
sixth digit, "2," means is was built for the Chevrolet
division of GM. The last digit, "2," means it was intended
for use in an automatic transmission car such as this.
Carburetor Date Code
The firth three digits, "029," indicate the 29th day of the
year. The last digit, "5," is the year in which the
carburetor was produced, 1975. So this carburetor was
stamped on January 29, 1975.
The distributor is original and correct
for a 1975 L48 Corvette with a
Distributor Date Code
The "5" is the last digit of the calendar year, the "B"
denotes February, and "7" is the seventh day of the
month meaning the distributor was made on February 7, 1975. This is correct as it predates the assembly date of the
The "75" is the model year, 1975. The "C" means the
transmission was made for a Chevrolet vehicle, and the "K"
means is was intended for a 350ci Corvette, which is correct
for this car.
Transmission Date Code
The assembly date code for the 1975 model year starts with
the first day of the calendar year in 1974 and continues
through the calendar year in 1975. This means "406" is the
406th day starting with January 1, 1974, which indicates the
transmission is dated February 10, 1975.
Transmission VIN Stamping
The last 6 digits of the car's VIN,
417225, are stamped on
the main case of the transmission and pictured below meaning this engine is original to this car.
Exhaust Manifold Left
The left exhaust manifold has the correct 3932461 casting
number for a 1975 Corvette.
Exhaust Manifold Right
The right exhaust manifold has the correct 3932461 casting
number for a 1975 Corvette.
The 61A alternator is original and correct for a 1975 L48
Corvette that had A/C with a 1112474 stamping.
Alternator Date Code
The "5" is the last digit of the calendar year, the "A"
denotes January, and "30" is the thirtieth day of the month
meaning the alternator was made on January 30, 1975. This is
correct as it predates the assembly date of the engine.
The starter is original and correct for a 1975 Corvette with
an automatic transmission with a 1108776 stamping.
Starter Date Code
The first "5" is the last digit of the calendar year, the
"B" denotes February, and the second "5" is the fifth day of
the month meaning the starter was made on February 5, 1975.
This is correct as it predates the assembly date of the
May and "L" is 1974 so this window is original, made
in May of 1974. This is correct as it predates the build
date of the car.
"J" is May and "L" is 1974 so this window is original, made
in May of 1974. This is correct as it predates the build
date of the car.
information obtained from Alan A. Colvin's Corvette by the Numbers
and Mike Antonick's Corvette Black Book.
Blue exterior is in nice driver condition. As one
can see in the photos the finish has a nice
shine. The rally wheels and center caps are in
great condition with a brilliant finish and no curb rash. The
tires have about 80% tread left and are correctly sized
225/70R16. The convertible top operates
well and goes up and down easily. It is in good condition with no
holes; it does show some wear and has some fraying on the edges as one can see in
the photos. The rear window is perfectly clear with no fogging
or yellowing. As
one would expect from a paintjob with this many years on it there
are some blemishes and checking around
car and on the rear decklid that were too tiny to show up in pictures, but nothing else
that is really noticeable from about ten feet away. We
have included many photos of the underside to show how it looks.
Black interior in this Corvette is in spectacular
original condition. The seats are in excellent condition
with no excessive wear, just some small marks in the typical
area where the driver gets in and out.
Please note that these appear to be the original seats and skins, not
some cheap aftermarket covers or replacements. The dash and console look awesome with no
sun fading. The carpet looks good with no stains, there is a
small spot in the driver's foot-well. As one can see in the
photos it is not very noticeable. The jack and jack handle are still with the car,
stored correctly behind the passenger seat, and pictured
below showing the original decals on the compartment lid.
The spare is still with the car. This Corvette has
never been smoked in; there are no burns marks and no aroma
of cigarettes. Corvette interiors from this era are not
known to wear well,
and the excellent condition of this original
interior is a huge testament to the meticulous care and
attention this car has received throughout its life and
another great verification of the low original mileage.
Corvette seems to be in very good mechanical condition. The car starts right away every time, runs well, and
idle smooth. It drives great and feels nice on the road and at
highway speeds. In the video below one can observe the car
accelerating on the highway up to about 65mph, shifting through
all the gears, braking to stoplight, and going through some
curves. Please note that there are no vibrations and the car
performs quite well overall. The transmission shifts smoothly.
The brakes are responsive and do not pull to one side or the
other. This Corvette has plenty of power
and is quite fast. Also, the engine compartment is exceptionally
clean, beautifully detailed, correct and complete as one can see
in the photos.
The original stereo radio works as do all
the exterior lights, horn, wipers, power windows, and all of the
gauges with the obvious exception of the clock. The blower works on
all speeds and the a/c also works and blows
cold. One can observe the a/c compressor clicking on and
engaging properly in the video. The vacuum system for the
headlights works correctly. Also, the headlights go up properly
with either the headlight switch or vacuum override switch.
There complete operation form both switches can be viewed in the
video below. The catalytic converter has been removed and the
car now has true dual exhaust with a very healthy tone. As with many older carbureted cars it is cold
blooded and runs best when it is warmed up. The heater core has
been bypassed. Not enough can be said as to how much of a pleasure
it is to drive this car, especially with the top down on a
Overall, this 1975 Corvette
Convertible is in
wonderful driver condition. The convertible models
always draw a great premium over the coupes and 1975 has
always been a special year as it was the last C3 drop
top. The original owners manual is still with the car. Matching numbers is very important in Corvette
pricing and as one can see this Stingray is very
correct. The originality,
the very low miles, the
beautiful and rare original color combination, and the great overall condition make this car especially important and
hard to duplicate. This Corvette always gets a ton of attention
driving down the road. It is apparent that the vehicle
has been well taken care of by its previous owners. The
prices of C3 Corvettes have increased considerably over
the past several years. They are secure and wise
investments for a collector. One could easily enjoy this
vehicle for several years and sell it for more than the
purchase price with minimal effort.
Thank you for looking and please do not
hesitate to email or call with any questions.
twelve minute video of the car including running, starting, walk
around, function check, and test drive on the road and highway
majority of cars sold by Seven Hills Motorcars are shipped
across the country or even across the world to their new
owners. Therefore, we are very familiar with the shipping
process and glad to help our customers with it. We are more
than happy to assist in having your car transported to anywhere
in world. For our domestic customers in the United States we
can handle the entire process in-house without the need or added
expense for a shipping broker. Please feel free to contact us
for a shipping quote.
We are one of the only classic car dealers that is able to offer
you a warranty for purchase on your classic car. There are
warranties available from 1 year to 10 year at prices ranging
from $2,500 to $6,000. Warranty work can be completed at any
licensed repair shop, including your local Chevrolet dealer. As
with all other classic car dealers, unless you decided to
purchase a warranty, all of our vehicles are sold "As-is" with
on warranty expressed or implied. Please contact us if you are
interested in a warranty for your classic vehicle.