1972 Cadillac

1972 Cadillac

For 1972, there were five models offered: Calais (two-door hardtop coupe and four-door hardtop sedan), deVille (two-door coupe and four-door sedan), Fleetwood Sixty-Special (four-door brougham), Fleetwood Seventy-five (four-door sedan, four-door limousine, and commercial chassis used in hearses and ambulances, etc.), and Fleetwood Eldorado (two-door hardtop coupe and two-door convertible)

In 1972, Cadillac marked its 70th anniversary with a refined line of cars that would set sales records. Cadillac built 267,787 cars which included a black Eldorado that President Nixon gave to the Soviet leader, Leonid Brezhnev. Introductions of the 1972 line took place in September, 1971 with production continuing until July 7, 1972. Calendar year production peaked at 266,780 cars and model year output hit 267,787 units. It was a record breaking year.

I.D. Numbers

CharacterTypeIndication
Firstnumber"6" to indicate production by Cadillac
Secondletterindicates the series as follows:
  • C=Calais
  • D=DeVille
  • B=Brougham
  • L=Eldorado
  • F=Fleetwood 75
Third & fourthnumbersindicates the body type:
  • 47=Coupe
  • 49=Sedan
  • 67=Convertible
  • 69=Brougham
  • 23=6 pass Limo
  • 33=9 pass Limo
FifthletterEngine:
  • R=472 cid
  • S=500 cid
SixthnumberModel year.
  • 2= 1972
SeventhletterManufacturing point.
  • Q=Detroit, MI
  • E=Linden, NJ
Eighth - thirteenthnumbersThe sequential production code

The GM serial numbering system changed slightly this year to incorporate an alphabetical series code and a new alphabetical code designating engine type. The serial number was again located on top of the instrument panel where it was visible through the windshield.

STYLE

Model NameModel No.Body/ Style No.Body TypeSeatingFactory priceShipping weightProduction total
Calais682/CC49-N4-dr HT Sedan6 pass.$59384698 lb3875
Calais682/CC47-G2-dr HT Coupe6 pass.$57714642 lb3900
DeVille683/DD49-B4-dr HT Sedan6 pass.$63904762 lb99,531
DeVille683/DD47-J2-dr HT Coupe6 pass.$61684682 lb95,280
Fleetwood Sixty-Special681/BB69-P4-dr Brougham6 pass.$76374858 lb20,750
Fleetwood Seventy-Five697/FF23-R4-dr Sedan6 pass.$11,9485620 lb995
Fleetwood Seventy-Five697/FF33-S4-dr Limousine9 pass.$12,0805742 lb960
Fleetwood Seventy-Five698/Z69890ZCommercial chassis-$-- lb2462
Fleetwood Eldorado693/LL67-E2-dr Conv. Coupe6 pass.$76814966 lb7975
Fleetwood Eldorado693/LL47-H2-dr HT Sport Coupe6 pass.$73604880 lb32,099

ENGINE

Engine typeOverhead valves. Cast iron block
Main bearingsFive
Valve liftersHydraulic
Displacement472 cubic inches (7.7 litres)
Bore and stroke4.300 x 4.060 inches (109 mm x 103 mm)
Compression ratio8.5:1
Brake horsepower (net SAE)220 at 4400 rpm
Brake horsepower (gross SAE)345 at 4400 rpm
Torque365 ft. lbs @2400 rpm
Oil pressure35 psi
CarburetorRochester four-barrel Quadrajet Model 4MV

CHASSIS

ModelWheelbaseOverall lengthTires
Commercial chassis157.5 in-L-78 x 15
Seventy-Five151.5 in250 in
Sixty-special133 in232 in
Eldorado126.3223 in
All others130 in229 in

DRIVETRAIN OPTIONS

Cruise control$92
Controlled differential (except Eldorado)$56
Eighty-Amp generator$41
Heavy-duty cooling system$56
Exhaust emission system, required on all cars built for California sale$15
Trailer Towing package (Eldorado)$62
Trailer Towing package (all other models)$92
Trackmaster$205

CONVENIENCE OPTIONS

Automatic Climate Control$523
Automatic Level Control$77
Rear window defogger (Eldorado)$36
Rear window defogger (other models)$31
Eldorado grid type rear window defogger$62
Door edge guards in 2-door$6
Door edge guards in 4-door$9
Power door locks for 75s$115
Power door locks for others$69
Power door locks with electric seat back release in coupes and convertibles$69
Dual Comfort seat in DeVille & Eldorado$103
Front and rear floor mats twin type in 75s$10
One piece front and rear floor mats for Eldorado$19
Twin type floor mats in other models$16
Soft Ray tinted glass$57
Convertible hard boot$40
Bumper impact strips$24
License frame(s)$6/1; $11/2
Remote control right mirror (standard on 75s)$26
Brougham and 75 opera lamps$51
Firemist paint$128
AM/FM pushbutton Radio$183
AM/FM signal-seeking stereo Radio$320
AM/FM radio with tape$406
AM/FM stereo signal-seeking with rear control in 75s$410
Full vinyl padded top for DeVille, including "halo" on Coupe DeVille$152
Custom Cabriolet Eldorado Coupe roof$360
Full vinyl Eldorado padded top$157
Power seat options$89-115
Shoulder belts in convertible front seat or rear seat all models$31
Tilt and Telescope steering wheel$92
DeVille/Eldorado/Brougham sun roof with vinyl or padded roof mandatory$610
Sunroof with Eldorado Coupe Custom Cabriolet treatment$1005
Remote control trunk lock$56
Trunk mat$8
Twilight Sentinel$40
Expanded vinyl Calais upholstery$41
Expanded leather upholstery in DeVille/Brougham$169
Expanded leather upholstery in Eldorado coupe$179
White sidewall L78-15 tires in 75s$47
White sidewall L78-15 tires in other models$41

SPECIFICATIONS

FLUID CAPACITIES

EngineV8 472cc (7.7L)V8 500cc (8.2L)
Crankcase4 qt5 qt
Crankcase with new filter5 or 6 qt6 qt
AutomaticTransmission after draining8 pt11.9 pt
Drive Axle5 pt4 pt
Fuel tank27.5 gal(US)27.5 gal(US)
Cooling with heater21.3 qt21.3 qt
Cooling with A/C21.3 qt21.3 qt
Heavy duty Cooling21.8 qt21.8 qt

GASOLINE ENGINE TUNE-UP SPECS

Engine V.I.N CodeRS
Engine typeV8-472cc(7.7L)V8-500cc(8.2L)
Fuel delivery4 bbl4 bbl
ManufacturerCadillacCadillac
Original Spark plugR46NR46N
Gap0.035 in.0.035 in
Distributor Point Dwell30°30°
Distributor Point Gap0.016"0.016"
Ignition timing (BTDC)
Intake valve opens (BTDC)3434
Fuel pump pressure5¼ - 6½ psi5¼ - 6½ psi
Idle speed600/400 rpm600/400 rpm

ALTERNATOR AND REGULATOR SPECS

Part #110094011005581100937110055711010151117144
Field current @ 12 V2.8 - 3.22.8 - 3.24.0 - 4.54.0 - 4.54.0 - 4.54.0 - 4.5
Output42 amps42 amps63 amps63 amps80 amps145 amps
Regulator Field-Relay: Air Gap0.015"0.015"Solid StateSolid StateSolid StateSolid State
Regulator Field-Relay: Point Gap0.030"0.030"
Regulator Field-Relay: Volts to Close1.5 - 3.21.5 - 3.2
Regulator Air Gap0.060"0.060"
Regulator Point Gap0.014"0.014"
Regulator Volts @ 75°13.5 - 14.413.5 - 14.413.8 - 14.813.5 - 14.413.8 - 14.813.5 - 14.4

BATTERY AND STARTER SPECS

EngineV8-472cc (7.7L)V8-500cc (8.2L)
Battery Ampere Hour Capacity7474
Battery Volts1212
Battery Terminal GroundedNeg.Neg.
Starter, Lock Test, AmpsNot RecommendedNot Recommended
Starter, Lock Test, Volts
Starter, Lock Test, Torque
Starter, No-Lead Test, Amps65 - 9565 - 95
Starter, No-Lead Test, Volts99
Starter, No-Lead Test, RPM7000 - 105007000 - 10500
Starter, Brush Spring Tension35 oz. min.35 oz. min.

GENERAL ENGINE SPECS

Engine V.I.N CodeRS
Engine typeV8-472cc(7.7L)V8-500cc(8.2L)
ManufacturerCadillacCadillac
Fuel delivery4 bbl4 bbl
Horsepower220@4000235@3800
Torque365@2400385@2400
Bore x Stoke4.300 x 4.0604.300 x 4.304
Compression Ratio8.5:18.5:1
Oil pressure35 psi35 psi

CRANKSHAFT SPECS

Engine typeV8-472cc(7.7L)V8-500cc(8.2L)
Main Brg Journal Dia.3.2503.250
Main Brg Oil Clearance0.0003 - 0.00260.0003 - 0.0026
Shaft End-play0.002 - 0.0120.002 - 0.012
Thrust on No.33

CONNECTING ROD SPECS

Engine typeV8-472cc(7.7L)V8-500cc(8.2L)
Journal Dia.2.50002.5000
Oil Clearance0.0005 - 0.00280.0005 - 0.0028
Side Clearance0.008 - 0.0160.008 - 0.016

PISTON AND RING SPECS

Engine typeV8-472cc(7.7L)V8-500cc(8.2L)
Piston-Bore Clearance0.0006 - 0.00100.0006 - 0.0010
Ring Side Clearance: Top Compression0.0017 - 0.00400.0017 - 0.0040
Ring Side Clearance: Bottom Compression0.0017 - 0.00400.0017 - 0.0040
Ring Side Clearance: Oil ControlNone (side sealing)None (side sealing)
Ring Gap: Top Compression0.013 - 0.0250.013 - 0.025
Ring Gap: Bottom Compression0.013 - 0.0250.013 - 0.025
Ring Gap: Oil Control0.015 - 0.0550.015 - 0.055

VALVE SPECS

Engine typeV8-472cc(7.7L)V8-500cc(8.2L)
Seat Angle45°44°
Face Angle45°44°
Spring Test Pressure160 lb @ 1.50 in.168 lb @ 1.50 in.
Spring Installed Height11516 in. (1.671875")11516 in. (1.9375")
Stem-to-Guide Clearance: Intake0.0010 - 0.00270.0010 - 0.0027
Stem-to-Guide Clearance: Exhaust0.0012 - 0.00270.0012 - 0.0027
Stem Diameter: Intake0.34200.3418
Stem Diameter: Exhaust0.34180.3416

TORQUE SPECS

Engine typeV8-472cc(7.7L)V8-500cc(8.2L)
Cyl. Head Bolts115 ft.lb115 ft. lb
Rod Brg Bolts40 ft.lb40 ft. lb
Main Brg Bolts90 ft.lb90 ft. lb
Crankshaft Damper or Pulley BoltPress fitPress fit
Flywheel to Crankshaft Bolts75 ft.lb75 ft. lb
Intake Manifold30 ft.lb30 ft. lb
Exhaust Manifold35 ft.lb35 ft. lb

CARBURETOR SPECS

Carb ID7047231 (4MV)7047232 (4MV)
Float Level15/64 in23/64 in
Air Valve Spring1/2 turn1/2 turn
Pump Rod1132 in.1132 in.
Primary Vacuum Break0.140 in0.205 in
Choke Rod0.090 in0.090 in
Choke Unloader0.312 in0.015 in
Fast Idle Speed1925 rpm1925 rpm

WHEEL ALIGNMENT SPECS

Feature Eldorado Full size
Caster Range ½°N - 1½°N 1½°N - ½°N
Caster Pref. 1°N 1°N
Camber LH wheel Range 38°N - 38°P 38°P - 38°N
Camber LH wheel Pref.
Camber RH wheel Range 38°N - 38°P 1/8°P - 5/8°N
Camber RH wheel Pref. ¼°N
Toe-In 0" 18 in. - 14 in.
Steering Axis Inclination11°

HISTORICAL NOTES

1972 Cadillac Notes

Calais7,775 (increased 846)
Sedan de Ville99,531 (increased 30,186)
Coupe de Ville95,280 (increased 29,199)
Eldorado40,074 (increased 12,706)
Series 6020,750 (increased 5,550)
Series 754,377 (increased 763)

LITERATURE & LINKS