Home Archive 1978 Mercury Grand Marquis

1978 Mercury Grand Marquis 4-Door Pillared Hardtop

The Marquis was Mercury's full-size flagship for 1978. Flory records 37,753 built for 1978 at a base price of $7,399.
8Z66A577970
8 Cyl. 460 Cu. In. (4-V)
Engine
4-Door Pillared Hardtop
Body
St. Louis, MO
Plant
Malaise Era
Era
No factory image on file
1978 Mercury Grand Marquis

VIN Breakdown

PositionValueDecoded
Year Code 8 1978
Plant Code Z St. Louis, MO
Model Code 66 Grand Marquis
Engine Code A 8 Cyl. 460 Cu. In. (4-V)
Serial Number 577970 Production #577970

Basic Information

MakeMercury
ModelGrand Marquis
Year1978
Body Style4-Door Pillared Hardtop
ManufacturerMercury
EraMalaise Era

Engine & Details

Engine8 Cyl. 460 Cu. In. (4-V)
Cylinders8
Displacement460 CID
Assembly PlantSt. Louis, MO
Plant CodeZ
Pattern SourceMercury
Confidence95%

Original Specifications (Matched to: Grand Marquis Sedan)

Height54.7
Length229.0
Wheelbase124.0
Width79.6

Source: Historical automotive documentation (1960-1972)

Powertrain Details Enhanced Data

Axle Type Semifloating

Pricing & Production Enhanced Data

Original Base Price $3205.00
No. Produced 61755

Body & Style Enhanced Data

No. Doors 4

Dimensions Enhanced Data

Weight 3826 lbs
Width 78 in.
Length 213.3 in.
Height 54.8 in.

Additional Specifications Enhanced Data

Make Ford
Compression Ratio-Std 9.0 :1
Type Constant mesh
Displacement 302 cu. in.
Rated Horsepower 51.2 hp
Type Dual downdraft
Valve Lifters Hydraulic
Colors Exterior Colors
Color Options (37)
Cooling System Centrifugal water pump
Exhaust System Single
Radiator Down flow
Ignition System Distributor and coil
Battery 12 V
Fuel Type Regular
Cooling System 13.7 Quarts
Optional Equipment 390 cu. in. V8 engine
Optional Equipment 427 cu. in. V8 engine
Optional Equipment Power steering
Optional Equipment Select-Shift automatic transmission
Optional Equipment 428 cu. in. V8 engine
Steering Gear Recirculating ball and nut
Rear Suspension Coil link
Front Suspension Independent ball joint with coil springs
Drive Rear wheel drive
VIN Location On tab on instrument panel close to windshield on passenger side visible from outside.
Tire Size 8.15 x 15
Spare Location Trunk
Origin United States
Model Year 1968
Series LTD
Model Number 57F
Body Maker Ford
Brake Size 11 in.
Emergency Cable and conduit on rear service brakes
Service Dual hydraulic
Rear Differential 4 pt.
Oil 5 qt.
Transmission 3.5 pt.
Fuel 25 gal.
Brake Horsepower 210@4600 hp
Cylinders 8
Lubrication Pressure to all bearings excluding wrist pin
Type V8 overhead valve
Main Bearings 5
Torque 300@2600 ft/lbs
Wheelbase 119 in.
Rear Tread 62 in.
Differential Ratio 3.1 :1
Differential Hypoid
Carburetor Autolite
Clutch Size 10 inches
Clutch Type Semicentrifugal
No. Of Gears 3
1st 2.99 :1
2nd 1.75 :1
3rd 1 :1
5th Not applicable :1
Reverse 3.17 :1
B &s 4 & 3

Enhanced Data Note: The enhanced vehicle data shown above represents the base vehicle configuration as manufactured. Individual vehicles may vary depending on factory options and modifications made throughout the vehicle's history.