Tag: 1963 Grand Sport

Larry Taylor’s Grand Sport Corvette #004 Replica – Videos!

Published on by Scott

When it Comes to Grand Sport Replicas, Attention to Details Pays Off!

Dateline: 2-1-22 This story was first published in the February 2019 issue of Vette Vues Magazine – Larry Taylor’s passion for Corvettes might be genetic. The Clinton, Utah resident’s grandfather was into Corvettes in the 1950s. Grand Pop passed down his Corvette passion to Larry’s Dad who owned a 1966 Sting Ray that he drag raced a little and also used to trailer his boat. When it came time for Larry to enter the world of automobiles, his first Corvette was a 1959 model that he bought in 1984.

Larry has an affinity for details. Anyone who has ever gone after an NCRS Top Flight award knows it’s all about “details, details, details”. It wasn’t long before Larry’s 1959 Corvette scored a Top Flight award. Classic Corvettes are wonderful, but as the 1990s went on the C4 Corvettes were looking better and better. So in 1995 Larry decided to get a “modern” Corvette and bought a 1990 Corvette. The C4 was really nice, but he found himself pulled back to the classics. Larry sold his 1990 Corvette, but not before acquiring another NCRS Top Flight award. If your passion is classic Corvettes, you can’t get much more “classic” than a 1963 Split-Window Coupe, which, you guessed it, Larry got another NCRS Top Flight award.

While all this was going on, Larry did some open-wheel racing and always liked Corvettes with racer-style. So if you are into “racer-style” and you own a 1963 Split-Window Coupe, it is no stretch that you would be drawn to the 1963 Grand Sport Corvette; the greatest “could have been…” Corvette of all time. If you are new to the Corvette hobby you might be wondering, “What’s so special about a Grand Sport Corvette? It’s a nice model Vette, but what’s the big deal?” Well, we’re not talking about the 1996 Grand Sport, or the C6 and C7 Grand Sports. No, we’re referring to the 1963 Grand Sport Corvette all-out racecar; arguably THE most storied car in Corvette history. Here’s the short version of why the Grand Sport is still being talked about, longed for, and honored with the production and replica Grand Sports.

In early 1962, after the major engineering work was completed on the new, upcoming 1963 Sting Ray, Zora Arkus-Duntov and his team got to work on RPO Z06. Duntov’s C1 racer kit program was hugely successful, such that by the end of the 1950s and into 1962, Corvettes were a force to be dealt with in SCCA racing. The Z06 was to carry on with Duntov’s program. That is until Carroll Shelby’s 2,000-pound Cobra arrived.

Duntov was an experienced racer and he knew that his 3,000-pound Z06 Sting Ray would be no match against the 2,000 Cobra. To Duntov, it was obvious; he needed to build a lightweight Corvette and to do this if would have to have a tube frame, an exotic engine, and a lightweight replica body. But what he really needed was official permission. Fortunately for Duntov, he had a friend at the top of Chevrolet; Semon “Bunky” Knudsen.

Knudsen was a serious “car guy” corporate officer who worked his way up through the ranks at GM. As general manager at Pontiac, he turned the brand’s stodgy image around with his Wide Track, Tri-Power performance cars, and factory support in NASCAR racing. His reward for doing a great job at Pontiac was the general manager position at GM’s flagship division, Chevrolet in 1961.

Knowing he had Knudsen’s ear, Duntov outlined his plan to get around GM’s adherence to the 1957 AMA Racing Ban. Duntov’s idea was to build limited production lightweight Corvettes that would sell for around $16,000-to-$20,000 and let the customers do the racing. Knudsen green-lighted Duntov plan and five, special cars, called, “The Lightweights” were built.

By November 1962 cars were completed and were renamed “Grand Sport”. They looked almost exactly like the production Corvette, but with minor differences and no split rear window. Initial testing at Sebring in December 1962 was very promising. But when word of Duntov and Knudsen’s covert activities reached GM President Frederick Donner, the Grand Sport came to a screeching halt! Documents at The GM Heritage Center indicate that the five Grand Sports and the spare parts were ordered to be warehoused, but that didn’t last long.

Duntov gradually loaned out Grand Sports #003, #004, and #005 to privateer racers. But without a proper development program, the cars were not successful and their performance was inconsistent. By the end of the racing season, Duntov called in the three Grand Sports for a few “improvements”. Duntov wanted to give his Grand Sports a fighting chance against Shelby’s Cobras at the upcoming 1963 Nassau Speed Weeks race at the end of November and the beginning of December.

When Grand Sports #003, #004, and #005 arrived in Nassau under the banner of the “Mecom Racing Team”, they were loaded for bear. This is the now-classic Grand Sport look; fat racing tires on wide knockoff wheels, aggressive vented hood, and big wheel flares. And under the hoods were Duntov’s latest engine jewels, the all-aluminum 377 small-block Chevy with 58mm side-draft Weber carbs. It was a romp for the grand Sports, as the Cobras were thrashed.

Three months later, the 1964 class win at the 12 Hours of Sebring with Roger Penske at the wheel of Grand Sport #005 would be the high-water park for the Grand Sports. This time period saw extraordinary advancement in racecar technology, such that by the end of 1965, the three-year-old cars were outdated.

When the Grand Sports received their upgrades in preparation for the 1963 Nassau race, Grand Sports #001 and #002 were made into roadsters and held back, but were eventually sold and raced, as were the coupes. Fortunately, all of the cars survived, are in excellent condition and are each worth millions of dollars. Over the years, Grand Sport Corvettes have thrilled thousands of fans, many have lusted to own one of the five cars, and around two dozen have actually owned Grand Sports.

Enter the world of kit cars. In early 1990 a company called D&D started making Grand Sport kit cars, but the quality was not good. Mongoose Motorsports offers high-quality 1963 Grand Sport and 1980s era GTP Corvette kits and turnkey cars. Then there are the Duntov Motors Grand Sport Continuance Racecars and the Superformance custom built-to-order Grand Sport cars.

When Larry decided to merge his interest in classic Corvettes, racing, and his attention to detail skills, he decided to go for a Grand Sport replicar. The Superformance Grand Sports are fantastic but on the expensive side, so Larry decided to get a Mongoose Grand Sport roller and finish it himself.

When you buy a Grand Sport roller from Mongoose you get the bare fiberglass body and interior, and a 4-inch tube chassis and basic suspension from a 1988 Corvette. The rest is up to you and your skill level. Larry bought the rolling chassis in April 2016. Many Grand Sport replica cars are finished as street machines with modern paint, wheels, tires, and amenities. A few are street versions of the real Grand Sport replicars. If you are going the racecar replicar route, you have to research which livery you want to replicate. Since the three Grand Sport coupes were raced by numerous owners; in different configurations; and liveries; one has to do their homework; and pay attention to details. Fortunately for Larry, he’s very good at that. After careful research, Larry chose the Sebring ’64, Delmo Johnson, and Dave Morgan livery. Today the actual car is part of The Reve Institute in Naples, Florida.

An all-aluminum 377-cubic-inch Donovan small-block Chevy engine with four Weber 48-mm side-draft carbs powers Larry’s Grand Sport. The real small-block Grand Sports used 58-mm Webers, but they are insanely expensive. The side exhausts are hand fabricated. The radiator, oil cooler, and power brake booster are 1963-style. The transmission is an M22 4-speed “Rock Crusher” and the shifter is an original 1963 shifter.

The front suspension is from a 1988 Corvette and has rack & pinion steering. The rear suspension is somewhat unusual. It is a modern coil-over suspension that uses the C4 differential and “batwing” rear cover and carrier. For an authentic look, Larry added a set of C2/C3 leaf springs and painted the batwing differential carrier black.

The wheels are 15×8 Halibrand aluminum replicas that have been powder-coated gold. The real Halibrand cast magnesium wheels had gold Dow 7 Magnesium Coating. When the real Grand Sports were racing they used then state-of-the-art Firestone racing tires. Larry’s Grand Sport replica uses 15×8 period-size correct Goodyear racing tires. As mandated back in the day when the Grand Sports were racing, there’s a spare tire in the “trunk” area.

“font-size: large;”>As delivered, Larry’s Grand Sport interior was bare fiberglass. Larry added some extra bolsters to the fiberglass seats, period-correct seat belts, a fire extinguisher, and a period-correct CB radio and antenna. The speedometer has been fitted with a 200-mph speedometer face and the factory fuel gauge has been replaced with an oil temp gauge. The toggle switches control the main fuel pump, differential cooler, and reserve fuel.

With a ton of photographic references for the Grand Sport #004 that currently resides at the Collier Museum, Larry applied his attention to detail skills to his Grand Sport replicar. As seen in these photos, the car was just completed in November 2018. Larry’s plans for 2019 are to show the car at Corvette shows and maybe at the National Corvette Museum. Then, he will bring the car back into his shop, remove the body, add all of the required modern safety equipment, and then take the car to the track.

The Donavan 377 small-block Chevy engine pulls around 550-horsepower, so weighing in around 2,250-pounds, that’s a power-to-weight ratio that will be a lot of fun on the track. Larry says, “I just want to have the experience of being on a race track with my Grand Sport and other vintage cars, just to be there; not to race and win anything, but just to get a sense of what it must have been like back in 1964.”

That’s something I believe we have all fanaticized about Larry. Go for it! – Scott

The Tale of Two C4 Grand Sport Corvettes in a Tiny Florida Town

Published on by Scott

Against all odds, a 1996 Grand Sport Coupe and Convertible live two blocks from one another in rural Florida!

Dateline: 1-23-22, this story was originally published in Vette Vues Magazine – When we moved to the tiny town of Lake Placid, Florida in 2014, I wasn’t expecting such a robust car culture. It’s not huge, but it is considerable. Once a year in July, Lake Placid hosts their annual Caladium Festival, with a Car & Bike Show at the DeVane Park that is well attended.

Lake Placid is located 15 miles south of Sebring in Highlands County, in south-central Florida. The town was chartered by Melvil Dewey, the inventor of the Dewey Decimal System, and is the sister city of Lake Placid, New York. The town is best known for several things: it is the “Town of Murals” (there are 46 murals painted on downtown businesses), the “Toby The Clown Foundation” Clown College, the “Caladium Capital of the World,” 27 freshwater lakes, and in 2012 Reader’s Digest Magazine voted Lake Placid as “The Most Interesting Town in America.”

With only 2.84 square miles and a population of around 2,000, the best way to describe the town is; think “Mayberry” as in “The Andy Griffith Show.” Between Sebring and Lake Placid there are orange groves, farms, and cow pastures. To the south, east, and west of the town, there are more farms, pine trees, cows, and let’s not forget the gators and bears!

Lake Placid is also home to two of the rarest special edition Corvettes, a 1996 Grand Sport Coupe and Convertible. And here’s the kicker – they both reside within two blocks of one another! Ron Ellerman is the original owner of the 1996 Grand Sport Corvette Coupe and John Meyerhoff is the owner of the 1996 Grand Sport Convertible.

I met John Meyerhoff in 2015 after a man tipped me off about “… a guy in Lake Placid that has one of EVERY generation Corvette!” Before the C7 came out, Meyerhoff had one of each generation. John sold his C1 to make room for his future C7, but it gets even better. John’s lady, Mary Carol Plott also has four Corvettes! Now THAT’S a “Corvette Power Couple”! John and Mary Carol appropriately met at a car show in Lake Placid. How’s that for Fate?

John got the Corvette bug back in the mid-1960s thanks to a fellow Navy officer and bought his first Vette, a 1966 427/425, 4-speed Mosport Green Roadster, around Christmas 1965. After John settled down and started a family, the Corvette was exchanged for a down payment on a house.

By the late 1970s, John got into a 1973 350/250 L82 roadster that fell casualty to a divorce and there were no Corvettes in John’s life for 15 years. John eventually remarried and by 2001, bought a new Magnetic Red convertible. John found the 2001 convertible to be a very comfortable road car and started racking up lots of miles. He was also getting close to retirement time.  

Most of us have a soft spot for our “first Vette,” so John began searching for another 1966 427/425 roadster. Finding another Mosport Green 1966 big-block roadster, but he finally found one that was close enough, a super sano Sunfire yellow 427/425 Roadster. With no power steering or brakes and a very heavy clutch, this is NOT a daily driver, but it makes for a great show car.

After full retirement, John’s wife passed and he decided that “Corvettes” would be his retirement.

“I came up with a new goal. I wanted one Corvette of each generation and I happened to find the 1996 Grand Sport Convertible. It was really dumb luck because although I had owned many Corvettes, I didn’t follow the special editions, so I really didn’t know what I had, I just liked the color scheme and the fact that it’s a convertible. It turns out that it’s one of four other Grand Sports with the exact same combo of options. Then to fill up the collection, I got the 1969 427 Convertible, then got a red-on-red 1960 Corvette. Before the C7 came out, I had one of every generation!”

Except for the Grand Sport Convertible, John’s five Corvettes are mildly modified. He doesn’t race them, but he does enjoy them with an occasional blast. John’s attitude when it comes to his Corvettes is that if a modification will improve the car’s performance or durability and drivability, he doesn’t mind making changes.

 

Ron Ellerman’s story is quite different. Ron was a boilermaker by trade and eventually owned a very successful, full-service car wash in Ohio. Over the years Ron had numerous interesting cars and motorcycles, but in his heart, he always wanted a Vette. He got his first Corvette bite when his older brother let him borrow his 1966 427 Roadster while Ron was in high school.

“I was always good at working on cars. As long as I could get something apart, I could reassemble it. In 1996 my local Chevrolet dealer had one Grand Sport Coupe on the showroom floor that he was using as an attraction. I kept looking at the car and thinking how much I wanted it, but the dealer wouldn’t sell! He was hoping to be able to keep it for himself, but I kept working on him. Eventually, he called me and we made the deal.”

Ron was having some health issues and recounts;

“I decided that I couldn’t put it off any longer. I let my business buy the car as a “company car,” paid it off, took the depreciation, and eventually sold the car to myself. The car is totally-stock and has run perfectly for the most part for 20 years. I took the car to a Mecum auction to sell, but couldn’t get what I know the car is worth (1996 Grand Sports are currently very undervalued), so I decided to keep it, probably for good. The car now has just over 10,000 miles on it. I recently noticed a small oil leak at the rear main seal – not bad for a 20-year-old car, I suppose. Since getting the Grand Sport I’ve had lots of “fix-up” cars that I worked on and sold. I had VW Bugs, old Cadillacs, a hot rod Nova, street rods, a few boats, and three Harleys. I like working on and fixing cars, and I love driving my Grand Sport Corvette.”

Let’s talk a little about what makes the 1996 Grand Sport Corvettes so unique. The 1996 Grand Sport option listed for $3,250 for the coupe and $2,880 for the convertible. Here’s what was included: dedicated Admiral Blue paint with white center stripes, special details, 17-inch ZR-1-style 5-spoke wheels with painted black spokes shod with P275/40ZR17 tires on the front and P315/35ZR17 rear tires, rear-wheel flares, all-black interior or black/red interior, iconic red fender hash marks, and sequential serial numbers.

The convertible Grand Sports had slightly smaller tires – P255/45ZR17 on the front and P285/40ZR17 on the rear and no rear fender flares. The reason the convertible had slightly less wide tires was that engineering felt that the convertible owners would not be happy with a more grip with a less rigid chassis structure.  

Except for the red accents on the throttle body and the “Grand Sport” lettering, the LT4 looked identical to the LT1. Inside the LT4 it was hot rod heaven and included increased compression (10.8:1 vs 10.4:1) improved aluminum heads, Crane roller rocker arms, a revised camshaft, stronger crank, and revised pistons. All LT4-equipped 1996 Corvettes had 8,000-rpm tachometers. The Grand Sport option was a beautiful way to celebrate the end of the C4 Corvette line.

When it comes to collectability and desirability, low production numbers are key. Chevrolet offered six special edition C4 Corvettes:

1986 Pace Car Replica (all 1986 Convertibles): 7,315 units

1988 35th Special Edition Package: 2,050 units

1993 40th Anniversary: 6,749 units

1995 Pace Car Replica: 527 units

1996 Collector Edition: 5,412 units

1996 Grand Sport: 1,000 units – 810 Coupes, and 190 Convertibles

No one pays ANY attention to the 1986 Pace Car Replicas; the production numbers were too high and it was just a Corvette convertible with stickers. And while the 1995 Pace Car Replica has the lowest production numbers of all of the C4 special editions, the Grand Sports have the patina of one of the coolest Corvette monikers ever, as an honor to the original five 1963 Grand Sport Corvette racers.

Also, while the 1995 Pace Car Replica has just over half the production numbers than that of the Grand Sport, the Grand Sport has the better LT4 engine, performance suspension, fender flares for the coupe version, and ZR1 wheels and tires. Where the 1995 Pace Car replica is a pretty car, the Grand Sport is a tough guy!

John Meyerhoff and Ron Ellerman are perfect examples of people that got the “Corvette Fever” that’s permanent. Duntov always wanted his customer to “enjoy their Corvette.” So with only 1,000, Grand Sports built, what are the odds of these two unique Corvettes residing in the tiny town of Lake Placid, Florida just two blocks from one another? Pretty amazing! – Scott

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1963 Aluminum 377 Small-Block Chevy Engine

Published on by Scott

Before the 1969 427 ZL1, there was the All-Aluminum 377 Small-block Chevy!

Dateline: 5-7-21, This story by K. Scott Teeters was first published in the October 2019 issue of VETTE magazine – In the early 1960s, an aluminum performance engine was as exotic as fuel injection, independent suspension, and four-wheel disc brakes. The first mention of an all-aluminum engine for a Corvette was in Zora Arkus-Duntov’s proposal outline for the Q-Corvette in 1957. Ed Cole was Chevrolet chief engineer from 1952 to 1956 and was the lead engineer in the design and development of the small-block Chevy.

The Wintersteen L88 Grand Sport #002 resides at the Simeone Museum in Philadelphia, PA. Part of the collection includes the hand-made #002 Roadster replica body and one of the all-aluminum 377 SBC engines that Dr. Simeone purchased from Jim Jeager. The replica body is mounted to a chassis buck with an interior.

Cole was a mechanical engineering visionary. After he became Chevrolet’s general manager in 1956, Cole announced his 1960 Q-Chevrolet concept that would put a transaxle into every car to improve traction and handling and eliminate the transmission hump that would open up the interior. Cole’s plan included the Corvette.

Even before going to work for Chevrolet, all Duntov wanted to do was to build racecars. Based on his racing knowledge, Duntov’s Q-Corvette was spectacular and included; a four-speed transaxle, four-wheel independent suspension, four-wheel disc brakes, and an all-aluminum fuel injected 283 engine. Duntov is usually credited with the all-aluminum small-block Chevy, a deeper look tells a slightly different beginning.

The design parameters of Cole’s SBC were that the engine should be; small, lightweight, simple, and inexpensive. Cole reasoned that an aluminum version of the SBC using a new aluminum-silicone alloy would be obviously lighter and probably less expensive to make. To keep costs down, there would be no valve seat inserts, no pressed-in valve guide inserts, or cylinder liners. But sometimes a simple idea turns out to not be so simple.

Problems started right from the beginning. The complex molds used sand cores and the completed castings required extensive machining. Sand-cast aluminum is high in porosity and low in density. During machining, cavities would open up in the castings, causing a high rejection rate, which drove up the cost.

Another indication that this is likely to be one of the Nassau Invasion 377s is the chrome stamped steel valve covers. Photos in the “Corvette Grand Sport” book by Paddock and Friedman from the race show the same valve covers.

Aluminum pistons on aluminum bores were hard to lubricate and would scuff the bores. Between the strength of materials and the casting challenges, pouring aluminum into molds designed for cast iron wasn’t going to work for mass production.

Weber carbs were THE hot setup in the 1960s before fuel injection became more efficient. The 377 used four massive 58mm side-draft carburetors. The “EW” on the float chamber cover stands for Edoardo Weber, the founder, and inventor of the Weber carburetor.

A few aluminum engines were completed. Duntov installed one in his CERV-I car in 1959, but the valves would freeze to the guides when the temperature went low. Mickey Thompson got an aluminum engine for an Indy car project and bored the cylinders to installed steel sleeves to reduce the C.I.D. to the Indy limit of 255-C.I.D.

Note the non-stock location of the alternator. This was to slightly lower the car’s center of gravity.

Roger Penske had TRACO modestly build an aluminum SBC to just 300-horsepower for his Cooper Monaco. When TRACO was done, the engine weighed just 350-pounds; the lightest of all the aluminum SBCs.

Forensic evidence gleaned from the book, “Corvette Grand Sport” by Paddock and Friedman indicates that based on the shape of the collector on the headers, this was most likely one of the engines used during the Nassau assault in 1963.

The original SBC was never designed to be cast in aluminum. So when exact copies were cast in aluminum, the basic weaknesses of the original design were obvious. In 1960 some Corvette brochures offered 275 and 315-horsepower fuel injection engines with aluminum heads but were canceled early in production due to breakage. Briggs Cunningham was to be given several sets of aluminum heads for his Corvette Le Mans assault, but none were installed.

When Duntov started planning his Lightweight Sting Rays in early 1962 to battle Shelby’s Cobras, the SBC had 327-cubic-inches. Duntov insisted on an all-aluminum 327, reasoning that the heavy-duty parts from the L84 Fuelie would be more than enough for his racing engine. Unlike the previous aluminum engines, steel cylinder liners were pressed into the block. After each block was machined, it was water-tested for leaks. If leaks couldn’t be fixed with welding they were scrapped.

The most significant change to the basic block was that the main bearing webs were thicker and four-bolt main bearing caps were used. The earlier aluminum SBCs were not delivering any significant power increases, so it was decided that more cubic inches were needed. A 4.00-inch stroke yielded 402-cubic-inches. However, experimentation showed that the engine was happier with a 3.75-inch stroke that yielded 377-cubic-inches. Notches had to be made into the insides of the block for connecting rod clearance.

Numerous cylinder head designs were considered. The wildest was a hemi head design with two spark plugs per cylinder. The hemispherical combustion chamber allowed for larger 2.20-inch intake and 1.72 exhaust valves. The intake system was a Rochester constant-flow fuel-injection unit. This was Duntov’s preferred engine for his Lightweight but never was developed or tested. Engineers expected 600-horsepower from the 402-cubic-inch configuration.

The Mark II big-block with its unique “porcupine” semi-hemi heads was in development, so engineers designed and cast similar sets of aluminum heads for the SBC. Initial tests showed that they did not flow as well as the standard wedge combustion chamber heads, so the concept was dropped. If the heads had been developed they could have been a game-changer and made it into production cars.

Twelve aluminum 377 blocks were successfully machined and designated “A” to “L”. When John Mecum took delivery of three Grand Sport Corvettes as part of his Nassau invasion, the cars had aluminum 377s with four 58-mm Webers. After the Grand Sports stomped the Cobras at Nassau, the cars were bought and sold at a brisk pace.

Engineers learned that the aluminum 377s were good for short races, such as Nassau, but not durable for long races, such as Sebring. When Penske raced Grand Sport #005 at Sebring in 1964, his car was powered by a steel version of the 377 and performed very well.

Several of the engines were sent to Jim Hall and installed into his Chaparrals. Hall was instructed to install the engines and not to change anything except for timing and settings for the Webers. The engines were plugged in, raced, and returned to Chevrolet for evaluation.

The inscription of the transmission is unusual and indicates that it was likely to have been a specially built unit. “W.O.26310” could have meant “Work Order”. “TRANS #7-B” could have meant the second rebuild of transmission #7. Also note that the bolts on the case side plate are aircraft safety wired. A special team at Chevrolet built all of the 377 engines, the safety wiring was likely a deterrent to tampering.

As the engines were raced, eventually nearly everything either failed or upon examination was soon to fail. For instance, when one engine threw a rod, engineers used a new process for making rods called, Vacuum-Induction Melt steel to insure no impurities in the raw forging. When bolts were magnafluxed and showed signs of stress, all bolts were then over-designed. Rocker-arm lube was another issue and there were electrical problems with the early-transistorized regulators and ignition amplifiers.

Note the serial number on the back of the block casting, “0240983” and the casting date, “8-20-63”. This “could” have been one of the engines used in the 1963 Nassau assault in early December 1963 that stomped on the Cobras.

Exhaust headers were showing signs of cracking at the ports due to metallurgical problems. This was fixed by using a different welding process. Camshaft gears were failing when dry-sump oil systems were installed. Excessive stress and wear on the camshaft drive gear caused the distributor to retard the timing; causing a drop-off in power.

Privateers raced all of the Grand Sports and many changes were made to the cars. One of the previous owners of the Simeone 377 built this expanded capacity oil pan. Original versions of the engines used as many stock performance parts as possible

The perceived advantage of the all-aluminum SBC was weight; the complete engine weighed 150-pounds less than a cast iron version, however, the aluminum engines didn’t make quite as much power. Because durability was such a serious issue, in the early years, development work went into durability.

Eventually, the aluminum SBC reached optimum development, priced itself out of racing, and didn’t contribute any parts that went into production engines. Close to the end, there was talk of an overhead-cam kit for the SBC, but no action was taken. The amount of money spent on the program was an accounting nightmare for sure. At best, all the problem-solving saved years of development time for the all-aluminum Can-Am block and the ZL1. In a sense, the all-aluminum SBC was a prehistoric ZL1, domed by the basic “bread and butter” design of the original SBC. – Scott

Reproductions of this post’s lead illustration of the All-Aluminum 377 Small-Block Chevy and the Grand Sport #005 are available as 11″ x 17″ prints, signed and numbered by the artist, CLICK HERE!

And for fans of the 1963 Grand Sport Corvette, we have LOTS of Grand Sport Corvette prints CLICK HERE!

 

The December 2017 Vette of the Month Contest Winner is…

Published on by Scott

John and Patti Hutchinson, of Orlando, Florida, and owners of The Grand Sport Registry (www.GrandSportRegistry.com), are the winners of Corvette Report’s first “Vette of the Month” photo contest with their Grand Sport Twins!

Dateline: 12-31-17, Photos by John Hutchinson: I know that I’m preaching to the choir about the origin of what it now arguably the single most popular Corvette model ever offered by Chevrolet – the Grand Sport. The original Grand Sport concept was Zora Arkus-Duntov’s secret weapon to battle the Shelby Cobra, but GM’s adherence to the AMA Racing Ban forced Zora’s covert operation to a screeching halt. Only five cars were built, and unfortunately never given proper development. Sports car racing was progressing so fast that within two years, the Grand Sports were outdated and ten years later, nearly totally forgotten!

The five Grand Sports were bought and sold over and over. Gradually proper owners acquired the cars and took good care of them, such as Bill Tower’s Grand Sport #005 that wears the Jim Hall & Roger Penske blue and white livery.

Today, all five cars are accounted for and the Wintersteen L88-powered Grand Sport is one of the prize cars in the Simeone Collection in Philadelphia. Over the years different kit versions have been produced. But since as race cars, unlike the class-dominating Cobras, the Grand Sports didn’t win any championships, so they never got much attention outside the Corvette community. Continue reading “

The December 2017 Vette of the Month Contest Winner is…” →

Corvette Prototypes and Concepts – Trend Setting: Part 4

Published on by Scott

all 3 concept corvettes

A look back at Chevrolet’s experimental, prototype, concept car, and show car Corvettes

Art & Words by Scott Teeters as republished from Vette Magazines SuperChevy.com website. Part 1,  Part 2,  Part 3

General Motors makes hundreds of kinds of cars and trucks. Some sell hundreds of thousands of units a year, which makes Chevrolet’s Corvette a complete enigma. Given the small number of Corvettes sold every year, it is a modern American manufacturing miracle that the car survived for 61 years. Continue reading “Corvette Prototypes and Concepts – Trend Setting: Part 4” →

A Scale Visions Birthday Tribute to Zora Arkus Duntov

Published on by Scott

Dateline: 12.24.12

Master model builder Don Theune shares his touching encounter with Corvette maestro, Zora Arkus-Duntov 

Don-Theune-1Forward: Zora Arkus-Duntov was born on December 25, 1909 and would have been 103. Zora often joked that he had the birthday curse being born on Christmas Day.

When you are a kid and your birthday is on Christmas you tend to not get double gifts. But Duntov made up for any toy deficiency as a child after he took over the Corvette program. Arguably, no one had more fun playing with Corvettes inside Chevrolet than Duntov.

Not only did he design and develop the go-fast parts we all came to know and love, but he usually did his own track testing. What’a lucky guy! Here’s our Happy Birthday tribute to Zora Arkus-Duntov and a big THANKS to Don Theune. Continue reading “A Scale Visions Birthday Tribute to Zora Arkus Duntov” →

Corvettes Score 23% in Edmonds 100 Greatest Chevrolets List

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Dateline: 9.27.11
Of the 23 Corvettes Edmonds picked, vote for your favorite at the end of this post!

Is the C6 ZR1 Corvette the "Best Vette Ever?" Cast your vote below!

Back on September 14, 2011 we shared with you the results of Chevrolet’s Centennial birthday celebration popularity contest to find the most popular Chevrolet of all-time. Like American Idol or Dancing With the Stars, the Greatest Chevy contest was a popularity contest. Certainly an argument could be made as to why the C6 ZR1 is the greatest Chevy of all-time because of its overall performance, the LS9 engine, top speed, etc. But that’s not what Chevrolet wanted to know. They wanted to know what was the most “favorite” Chevy of the last 100 years.

Well it seems that the people at Edmonds.com decided to draw up their own list of great Chevys. The 100 top Chevys list isn’t limited to production Chevrolet cars, but includes, race cars, prototypes, and show cars. Of the 100 cars in the list, 23 were Corvettes! Pretty impressive for a low-volumn, limited usage automobile. The list doesn’t appear to be in any specific order and there’s a slide show of all 100 cars too. Also, the story does not explain how this list was drawn up. Regardless, it’s interesting just the same. To review the Edmonds story, CLICK HERE.

Here are the 23 Corvettes:
1. 1953 Corvette – The First Corvette.
2. 1955 265 V8 Corvette – The first V8 Vette.
3. 1957 Fuel Injected Corvette – The First Fuelie Corvette
4. 1956 SR-2 Corvette Race Car
5. 1957 Corvette SS Race Car
6. 1959 Stingray Racer – Bill Mitchell’s race car playtoy Continue reading “Corvettes Score 23% in Edmonds 100 Greatest Chevrolets List” →

Vette Polls: Was There a 6th 1963 Grand Sport Corvette? Cast Your Vote!

Published on by Scott

Dateline: 8.5.11
Corvette Odd-Ball: A Juicy Story, Indeed, But Some Documentation Would Sure Help!

Special thanks to Dave Friedman for the basic photo of the above art. if you love Grand Sport Corvettes, you should get a copy of "Corvette Grand Sport" by Lowell C. Paddock, with photos by Dave Friedman.

Read the below post and let us know what you think in our informal poll. Do you think there was a 6th 1963 grand Sport Corvette?

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The Corvette hobby has grown so wide and deep you could spend all day, day-after-day, and probably not be able to keep up with everything. So I didn’t beat myself up for not discovering this sooner. While poking about for some background on another project, I stumbled upon a post talking about a story from Autoweek writer, William Jeanes that addressed the notion that there was a SIXTH Grand Sport Corvette. If you’ve been into the Corvette hobby for a while, you’re familiar with the GS Corvette story: Five lightweight Grand Sport Corvette race cars were secretly built by Zora Arkus-Duntov as a counter punch against the Shelby Cobras. The cars showed potential, but GM’s president, Frederick Donner, order that Chevrolet MUST comply with the official GM policy that “we DO NOT race cars.”

Duntov and Chevrolet’s general manager, Simon “Bunkie” Knudsen, were ordered to stop what they were doing. The cars were not ordered to be destroyed, so Duntov loaned the cars out and eventually, they were sold. From there, the GS Corvettes were raced, hammered on, became outdated, sold, resold, and at one point in the early ‘70s were nearly lost. Eventually, all five cars were found and have been lovingly restored. Today, they are very valuable pieces of Corvette history.

While the prospect of a 6th GS is an intriguing story, it’s got “modern urban legend” smell all over it. Unfortunately, it’s all based on anecdotal stories. Here are the key points:

1. Texas oil man John Mecom claims that he bought 6 GS Corvettes.

2. Road & Track artist and Mecom pal, Bill Neale claims that his friend, John Mecom, had a photo in his trophy room showing 6 GS Corvettes in his shop.

3. Retired GM employee, Jim Champlin worked at the GM Milford proving Grounds claims that he was personally charged with destroying the 6th GS in late ‘64 or early ‘65. He says that after the car was returned from the Bahamas, he was told to “make it disappear.” So, he put two tires in the car, doused it with gasoline and BURNED IT. Champlin also says that his supervisor, Bob Cameron witnessed the destruction. Continue reading “Vette Polls: Was There a 6th 1963 Grand Sport Corvette? Cast Your Vote!” →

Corvette Book Review: “Legendary Corvettes”

Published on by Scott

Corvette Legends Randy leffingwell

“Vettes Made Famous On The Track And Screen” by Randy Leffingwell & Photography by Dave Wendt

Let me get this out of the way, up front. I love this book! For Corvette lovers, like us, this book is a visual delight. Veteran automotive writer, Randy Leffingwell and seasoned photographer, Dave Wendt have teamed up to present a visual and literary trip through 18 unique Corvettes.

As you page through the book, keep in mind that the images you see have not been PhotoShopped – they are “photographs.” Now “novel.” Wendt is a master at lighting. This is photographic “art.”

Keep in mind that our criteria for this book is, “Vettes Made Famous On Track And Screen.” After I had that settled in my head, everything was fine. Our visual trip begins at the beginning – the 1953 Corvette. The images draw out the inherent beauty of the car. It was just too good-looking to give up on, by a few very important people. That’s where Leffingwell’s prose lays out the stories. Continue reading “Corvette Book Review: “Legendary Corvettes”” →

Grand Sport Legend

Published on by Scott

The Amazing Legend of the Grand Sport Corvette

How  a passionate Corvette engineer created the Grand Sport Racing Machine to be one of the fastest and most fierce in all the land. Continue reading “Grand Sport Legend” →