The buzz surrounding the success of Chevrolet's heavily redesigned
1956 Corvette proved lead engineer Zora Arkus Duntov right that GM
had a winner on its hands. The momentum from 1956 continued into
1957, with the same striking styling, more luxury options, a
vibrant new color palette, and a range of serious high-performance
'smallblock' engine options, up to 283 cubic inches from the old
265. At the top of the line sat two V8s equipped with sophisticated
Rochester 'Ram Jet' fuel injection, rated at either 250 horsepower
or, with solid lifters, high-lift cam, and high compression, 283
bhp - achieving the magic one horsepower per cubic-inch mark.
Along with being Corvette's lead engineer and cheerleader, Zora
Arkus Duntov was an accomplished racer who believed in the power of
"win on Sunday, sell on Monday." He knew the Corvette could stand
proudly in the bustling world of American club racing and on the
world stage, so he developed factory options aimed at gentleman
racers. RPO 579D took the top-line Rochester "Ram Jet" fuelie added
a special molded fiberglass cold-air intake, a close-ratio 4-speed
gearbox, Posi-traction limited slip diff, and a column-mounted
8,000-rpm tach. No radio was fitted so the ignition wires could be
relocated away from the manifolds. Buyers could also select RPO
684, which paired heavy duty suspension with a big brake kit that
included larger finned drums, metallic linings, and brake cooling
ducts. The package was undeniably effective, as Corvettes took an
overall win at the 12-hours of Sebring and the hotly contested SCCA
B-Production national championship.
Experts agree that just 43 of these so-called 'Airbox' Corvettes
were produced in 1957, making them among the rarest and most
sought-after variants of the C1 generation. Our featured example is
a genuine Airbox/Big Brake car, boasting superb documentation and a
recent highly detailed, award-winning restoration. Distinctively
presented in its original livery of Polo White with red upholstery,
red wheels, and optional heater delete, it is an outstanding
example fit for concours presentation, with the backing of
fascinating history and NCRS Topflight and Duntov Awards.
According to documentation compiled by Corvette historian R. J.
Mauser, this Airbox 'Vette was purchased new by Mr. Pat Mathis of
Honolulu, Hawaii. A World War II veteran, car dealer, and active
privateer club racer, Mathis bought this car to replace a
Thunderbird which he had raced with little success. This Corvette
was completed in August of 1957, and on February 19, 1958, Mathis
registered it for its first race at the Dillingham Airfield held on
March 15-16. He quickly found speed in the Corvette and began
scoring top ten finishes and class wins, becoming a very
competitive driver in the Hawaiian scene and filling his trophy
case along the way.
By the 1960 season, Mathis had repainted the Corvette in bronze and
made light modifications in the quest for speed. Changes included a
cut-down aero screen in place of the windshield, removal of side
molding and door handles, fitting a custom grille, side-exit
exhaust, and a roll bar. All of these changes are documented in a
series of marvelous period photos provided by Mr. Mathis' son, and
the telltale evidence has been meticulously documented as part of
the restoration.
Subsequent owners include David Williams, a US Serviceman who
brought the car to the mainland, and later Ray DeCesare. A photo of
the car from 2003 still shows some evidence of its past, as it had
not yet been restored. In 2022, while in the care of its current
custodian, the Airbox Corvette underwent a comprehensive body-off
restoration, finished to exacting NCRS standards. Throughout the
project, details were photographed and documented by Mr. Mauser and
compiled into a detailed report. He noted such details as original
style fasteners indicating the body had never been removed from the
chassis, original fiberglass bonding strips, and no evidence of
bodywork aside from a small section over one fender. Quite
incredible for a car that spent its early years on the
racetrack!
Through the process of forensic restoration, the original paint
color was discovered. The suspension and brakes were inspected and
found to be consistent with the factory RPO 684 components. This
was also confirmed by the original ductwork for the rear brakes.
Many other details are noted throughout the report, including
photos of the key components.
With the painstaking restoration of this very special Corvette
complete, it was shown at the 2022 NCRS Florida Regional event,
earning a Top Flight Award. It returned to the 2023 Florida Winter
Regional event, where it passed the rigorous Performance
Verification Test, counting toward the coveted Duntov Award, which
it achieved at the 2023 NCRS National Convention in French Lick,
Indiana, with a score of 98.2 points.
Looking the part of the 50s racer in warm white paint, contrasting
red steel wheels, dog dish hubcaps and black wall tires, there's no
denying this Corvette's purposeful presence. The superb restoration
has hardly aged since its completion, and it remains in outstanding
order inside and out. Along with its meticulous detailing, it is
furnished with its NCRS awards and certificates, detailed history
reports, period photos, and an array of fantastic period racing
trophies won by Pat Mathis during his Hawaiian motorsport exploits.
With just 43 examples of the breed, opportunities to acquire a
genuine, meticulously documented 1957 Airbox Corvette are
exceptionally rare, and this outstanding example - with fascinating
history and an award-winning restoration - represents the pinnacle
of this rare breed.
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