1971 Oldsmobile Cutlass Supreme �€" Rocket 455 V8, W-30 Tribute,
Bittersweet Orange Why This Car Is Special The 1971 Oldsmobile
Cutlass Supreme occupies a unique place in American muscle car
history. It was the last model year before tightening emissions
regulations and insurance surcharges began to genuinely strangle
big-block performance. By 1971, Oldsmobile had already lowered
compression ratios across the board to run on regular unleaded
fuel, but the Rocket 455 cubic inch V8 �€" the largest displacement
engine Oldsmobile ever put in a passenger car �€" still produced
340 horsepower and a massive 460 lb-ft of torque in standard tune
that year. That torque figure is what made the 455 special. It was
not a high-revving screamer. It was a low-rpm freight train, the
kind of engine that pulls hard from idle and keeps pulling through
the quarter mile without asking much of the driver. The Cutlass
Supreme was the upmarket version of the A-body Cutlass lineup,
sitting above the base Cutlass but below the full performance
4-4-2. It offered a longer list of standard comfort and appearance
features, including the distinctive woodgrain interior trim that
became a signature of the model. The 1971 Cutlass Supreme was one
of the best-selling cars in the United States that year, and the
two-door hardtop coupe body style �€" with its wide C-pillar,
flowing roofline, and long hood �€" has aged extremely well
visually. This particular 1971 Oldsmobile Cutlass Supreme is
finished in Bittersweet Orange, one of the more distinctive factory
color options available on the A-body platform in 1971, paired with
a black vinyl top and a black interior. The car wears W-30 tribute
badging and the corresponding ram-air hood scoops, graphics, and
stripe package that evoke the factory W-30 performance option
without claiming to be something it is not. Under the hood sits a
Rocket 455 V8 backed by a Turbo Hydra-matic 400 automatic,
supported by a set of performance upgrades that make this car a
genuine driver rather than a show piece. The VIN decodes to confirm
this is a 1971 Oldsmobile A-body two-door hardtop built at the
Lansing, Michigan assembly plant, with a 455 cubic inch engine and
automatic transmission �€" consistent with everything presented
here. Features List - Rocket 455 cubic inch V8 engine - Turbo
Hydra-matic 400 3-speed automatic transmission - Edelbrock aluminum
intake manifold - 4-barrel carburetor - MSD ignition system -
Magnaflow dual exhaust - W-30 tribute badging and ram-air hood
scoops - Black W-30 stripe graphics - Bittersweet Orange exterior
paint - Black vinyl top - Chrome front and rear bumpers -
Torq-Thrust style wheels - Air conditioning - Woodgrain interior
trim on dashboard and door panels - Custom sport steering wheel
with Oldsmobile center cap - Dashboard-mounted tachometer - Front
and rear bench seats - Front and rear headrests - Black floor
carpeting - Column-shifted automatic transmission - Rear drum
brakes Mechanical The Rocket 455 was Oldsmobile's big-bore entry in
the displacement wars of the early 1970s. Introduced in 1968, the
455 used a large 4.126-inch bore with a 3.975-inch stroke, giving
it a broad, undersquare design that favored torque over high-rpm
horsepower �€" exactly the kind of engine that suits street
driving. In standard 1971 tune, it was rated at 340 horsepower and
460 lb-ft of torque. The compression ratio had been dropped to
8.5:1 that year to accommodate regular unleaded fuel, which
actually made these engines more durable long-term and easier to
run today on pump gas. This car's 455 has been upgraded with an
Edelbrock aluminum intake manifold, which reduces weight over the
iron factory unit and improves airflow to the 4-barrel carburetor.
The MSD ignition system replaces the factory points-type ignition
with a capacitive discharge unit that delivers a stronger, more
consistent spark �€" a practical improvement that helps the engine
run cleanly and start reliably. The Magnaflow dual exha
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