1974 Chevrolet Corvette Convertible �€" Numbers Matching L48 350
V8, Last Year for True Dual Exhaust Why This Car Is Special The
1974 Chevrolet Corvette holds a specific and well-understood place
in C3 history, and collectors who know the model know exactly why
this particular year matters. 1974 was the last year the Corvette
left the factory with a true dual exhaust system �€" meaning two
separate exhaust paths running from the headers all the way to the
rear. Starting in 1975, federally mandated catalytic converters
forced GM to route the exhaust through a single converter under the
car, eliminating the true dual setup entirely. If you want a C3
Corvette with that factory-correct dual exhaust configuration and
no emissions equipment restricting the flow, 1974 is your last
opportunity. There is more to the 1974 model year than just the
exhaust. The rear end of the car was redesigned for 1974 with a new
body-colored urethane rear bumper cover that replaced the chrome
bumpers used in prior years. That rear bumper design was used only
for 1974 �€" the 1973 front end had already transitioned to
urethane, but the rear was still chrome. In 1975 the design changed
again. So the combination of the 1973-style front and the 1974-only
rear makes this specific body configuration a single-year design.
That is a detail serious Corvette collectors track carefully.
Chevrolet built 37,502 Corvettes for the 1974 model year, with
convertibles accounting for 5,474 of that total. Convertible
production was already declining �€" 1975 would be the last year
for a Corvette ragtop until the body style returned for 1986. This
particular car is a genuine survivor with 76,411 miles on the
odometer, a numbers matching L48 350 V8, and a long list of correct
factory and period-appropriate options. Features List - Numbers
matching L48 350 cubic inch V8 engine - Turbo-Hydramatic automatic
transmission - Positraction limited-slip differential - True dual
exhaust (last year for this configuration) - MagnaFlow mufflers -
4-barrel carburetor - Independent rear suspension - Power steering
- Power disc brakes, all four corners - Air conditioning - Tilt
steering column - AM/FM radio - Correct Corvette Rally Wheels -
White convertible soft top - Deluxe interior with white leather -
Integrated seatbelts (seat-mounted shoulder belts, correct for
1974) - Front spoiler - Luggage rack - 1974-only rear urethane
bumper - 76,411 correct miles Mechanical The engine in this car is
the L48, Chevrolet's base 350 cubic inch V8 for the 1974 Corvette.
The VIN confirms this as a numbers matching car, meaning the engine
stamped to this vehicle has not been replaced. For 1974, the L48
was rated at 195 horsepower under the net rating system that GM
adopted in 1972 �€" a change in measurement methodology, not a
reflection of how the engine actually performs. The L48 breathes
through a 4-barrel carburetor and exhausts through a true dual
system, the last year this layout was offered from the factory on
any Corvette. Backing the engine is the Turbo-Hydramatic automatic
transmission, which was a popular choice in 1974 and is well suited
to a car used for regular driving. The rear axle includes a
Positraction limited-slip differential, standard equipment on the
Corvette and important for putting power down evenly through both
rear wheels. The 1974 Corvette uses an independent rear suspension
�€" a configuration Chevrolet introduced on the Corvette in 1963
and retained throughout the C3 generation. The setup uses a
three-link design with a single transverse leaf spring, half
shafts, and U-jointed axles, giving the rear wheels independent
travel rather than the solid axle setup used in most American cars
of the era. The exhaust on this car has been fitted with MagnaFlow
mufflers, which is a known and respected aftermarket upgrade that
improves flow and sound while maintaining a clean installation. The
true dual pipes are clearly visible in the undercarriage photos,
running corre
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