1973 Pontiac Grand Am

Muscle car powered by 1973 Pontiac Grand Am engine family.

Exact-year four-door Grand Am retained as the stock-presenting family baseline for Colonnade body, grille, striping, trim, lamps, glass, and factory-style wheels.

Bodies Two-door or four-door Colonnade hardtop

Configurations two-door Grand Am, four-door Grand Am

Engine range 400 two-barrel through optional 455 four-barrel

Chassis Radial Tuned Suspension with coils front and rear

Production Exact configuration ledger remains unresolved

Story

1973 Pontiac Grand Am

The 1973 Grand Am family combined two-door or four-door colonnade hardtop with two-door Grand Am, four-door Grand Am configurations. This page keeps those factory choices together without treating an engine, stripe, badge, or trim package as a separate car identity.

Engines and transmissions

Pontiac's 400 two-barrel formed the regular path, with 400 four-barrel and 455 four-barrel configurations preserving distinct induction, emissions, cooling, transmission, and axle requirements. Transmission, induction, cooling, exhaust, axle, emissions equipment, and dates must match the selected engine path.

Chassis and brakes

The A-body used independent front coils and a four-link coil-sprung rear axle, with Grand Am-specific radial-tire chassis tuning. Brake, steering, spring, damper, axle, ratio, wheel, and tire equipment varied by configuration and must be reconciled to factory and car-specific records.

Body, trim, and proof

Start with VIN or serial, body tag, title, shell, and ownership history. Then reconcile drivetrain, chassis, protected finish, cabin, trim, dates, and records. Replaceable badges, stripes, wheels, or a swapped engine cannot establish factory configuration.

**Exact-year view retained for body, trim, glass, lamps, bumpers, and wheel context; condition and restoration details remain specific to the photographed car.**MercurySable99 via Wikimedia Commons · CC BY-SA 4.0

Price history

Values

Nominal dollars from original price sheets, auction archives, and approved value references.

Original Price

A verified original price is not yet available for this car.

Values move with paperwork, originality, options, condition, venue, and body style. High bids and guide values are labeled separately from completed sales.

Reference records

Options, Colors & Components

Source-backed details for trim, chassis, production, and authenticity.

Engine Details

400 two-barrel V8 400 cu in Pontiac V8 with two-barrel induction · Regular Grand Am path · engine assembly / specification
400 four-barrel V8 400 cu in Pontiac V8 with four-barrel induction · Grand Am performance path · engine assembly / specification
455 four-barrel V8 455 cu in Pontiac V8 with four-barrel induction · Optional Grand Am path · carburetor / specification

Transmission

Factory transmission Three-speed manual where factory listed
Factory transmission Four-speed manual with eligible 400 application
Factory transmission Turbo Hydra-Matic automatic matched to engine and axle

Options

Engines and Induction summarized from reviewed factory and marque references.Classic Muscle · Reference illustration

455 455 four-barrel V8 factory · performance · Engine, induction, cooling, transmission, axle, emissions equipment, dates, and records must agree.
M20 Four-speed manual factory · performance · Eligible engine, gearbox, clutch, pedals, shifter, axle, console, and records must agree.
G80 Safe-T-Track differential factory · performance · Carrier, ratio, housing, dates, and records define one installation.
GAUGES Rally gauge and tachometer equipment factory · comfort · Cluster, sender, harness, engine application, and records must agree.
AIR Factory air conditioning factory · comfort · Compressor, brackets, controls, ducts, refrigerant plumbing, and records must agree.

Paint

Exact-year Grand Am close detail showing the 6.5 Litre emblem, adjacent body finish, panel gap, lamp edge, and bright trim; it represents the 400-cubic-inch appearance path and not every available engine.Greg Gjerdingen via Wikimedia Commons · CC BY 2.0

11 Cameo White factory · solid
19 Starlight Black factory · solid
24 Admiralty Blue factory · solid
44 Brewster Green factory · solid
48 Verdant Green factory · solid
64 Ascot Silver factory · metallic
75 Buccaneer Red factory · solid
97 Florentine Red factory · solid

Production

Transmissions summarized from reviewed factory and marque references.Classic Muscle · Reference illustration

1973 Pontiac Grand Am family total · disputed

Authenticity

Rear Axle and Ratios summarized from reviewed factory and marque references.Classic Muscle · Reference illustration

Model-year identity 1973 Grand Am VIN or serial, body tag, title, shell, drivetrain, trim, protected finish, and ownership evidence that agrees · VIN or serial plate, body or trim plate, chassis, title, build records, and ownership history · fraud detection
Engine and transmission Configuration-correct engine, induction, transmission, controls, stampings, castings, and dates · Engine, induction, gearbox, shifter, pedals, stamp pads, castings, dates, and records · numbers matching
Axle, brakes, and suspension Application-correct axle, ratio, brake system, steering, springs, links, and dampers · Axle housing and carrier, brakes, steering, suspension, dates, service records, and build evidence · date correctness
Paint, exterior trim, and cabin Plate- and record-supported finish, moldings, badges, wheels, upholstery, instruments, and controls · Body and trim plates, protected paint, upholstery, hardware, dashboard, and restoration records · trim correctness

Still Researching

production No reviewed public ledger reconciles 1973 Grand Am production by body, model, engine, transmission, axle, paint, trim, options, plant, date, and surviving-car status.
paint colors Reviewed references establish representative factory colors but not a complete body, trim, stripe, special-order, plant, and build-date compatibility matrix.
interior Broad cabin equipment is documented, but the complete upholstery color, material, body, option, and production-date matrix is not publicly reconciled.
authenticity markers Public model references cannot prove one survivor's born-with shell, drivetrain, chassis components, paint, trim, options, or component dates.