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A total of 238,745 Cadillacs, built for the 1970 model run, set an all-time divisional record. Calendar year sales totals were off the mark, however, due to a major G.M. strike. They peaked at just 152,859 units. George R. Elges became general manager of Cadillac Division this year. Sales of the new Cadillac line began September 18, 1969. The optional Trackmaster skid control system was made available for the Eldorado, subsequent to initial model introduction.

For 1970, there were five models: Calais (two-door hardtop coupe and four-door hardtop sedan), DeVille (two-door coupe, two-door convertible, four-door sedan, and four-door hardtop sedan), Fleetwood Sixty-Special (four-door sedan and 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)

I. D. NUMBERS

  • Vehicle identification numbers were stamped on the top of the instrument panel this year and were visible through the windshield
  • The original engine serial number was the same as the vehicle identification number
  • The first symbol was a number "6" to indicate "Cadillac"
  • The second and third symbol represented the series code number
    • "82" for Calais
    • "83" for DeVille
    • "93" for Eldorado
    • "80" for Fleetwood 60 Special
    • "81" for Fleetwood 60 Brougham
    • "97" for Fleetwood 75 Limousine
    • "98" for Commercial chassis
  • The fourth and fifth symbol represented the Fisher Body Division Code
    • 23 = 4-dr luxury sedan
    • 33 = 4-dr limo sedan
    • 47 = 2-dr hardtop coupe
    • 49 = 4-dr hardtop sedan
    • 67 = 2-dr convertible
    • 69 = 4-dr sedan
    • 90 = commerical chassis
  • The sixth symbol was a number "0" for 1970 model year
  • The seventh symbol was a letter to represent the assembly plant
    • Q = Detroit, Michigan
    • E = Linden, New Jersey
  • The next six numbers beginning with 100001 at each assembly plant was the sequential serial number

SPECIFICATIONS

FLUID CAPACITIES

EngineV8 472cc (7.7L)V8 500cc (8.2L)
Crankcase4 or 5 qt5 qt
Crankcase with new filter5 or 6 qt6 qt
AutomaticTransmission after draining25 or 26 pt26 pt
Drive Axle5 or 4.5 pt4.5 pt
Fuel tank26 gal (US)24 gal (US)
Cooling with heater21 qt20 qt
Cooling with A/C21 qt20 qt
Heavy duty Cooling25 qt22 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 in.0.016 in.
Ignition timing (BTDC)8°7½°
Intake valve opens (BTDC)18°18°
Fuel pump pressure6 psi6 psi
Idle speed600 rpm600 rpm

ALTERNATOR AND REGULATOR SPECS

Part #1100908110090911006941100910 
Field current @ 12 V2.2 - 2.62.2 - 2.62.2 - 2.62.8 - 3.2 
Output42 amps42 amps55 amps63 amps130 amps
Regulator Field-Relay: Air Gap0.015 in.0.015 in.0.015 in.0.015 in.Transistor-Type
Regulator Field-Relay: Point Gap0.030 in.0.030 in.0.030 in.0.030 in.
Regulator Field-Relay: Volts to Close1.5 - 3.21.5 - 3.21.5 - 3.21.5 - 3.2
Regulator Air Gap0.060 in.0.060 in.0.060 in.0.060 in.
Regulator Point Gap0.014 in.0.014 in.0.014 in.0.014 in.
Regulator Volts @ 75°F13.5 - 14.413.5 - 14.413.5 - 14.413.5 - 14.413.5 - 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, Amps70 - 9970 - 99
Starter, No-Lead Test, Volts99
Starter, No-Lead Test, RPM78007800
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
Horsepower375@4400400@4400
Torque525@3000550@3000
Bore x Stoke4.300 in. x 4.060 in. 4.300 in. x 4.304 in.
Compression Ratio10.00:110.0:1
Oil pressure35 - 40 psi34 - 40 psi

CRANKSHAFT SPECS

Engine typeV8-472cc (7.7L)V8-500cc (8.2L)
Main Brg Journal Dia.3.250 in.3.250 in.
Main Brg Oil Clearance0.0003 in. - 0.0026 in.0.0003 in. - 0.0026 in.
Shaft End-play0.002 in. - 0.012 in.0.002 in. - 0.012 in.
Thrust on No.33

CONNECTING ROD SPECS

Engine typeV8-472cc (7.7L)V8-500cc (8.2L)
Journal Dia.2.5000 in.2.5000 in.
Oil Clearance0.0005 in. - 0.0028 in.0.0005 in. - 0.0028 in.
Side Clearance0.008 in. - 0.016 in.0.008 in. - 0.016 in.

PISTON AND RING SPECS

Engine typeV8-472cc (7.7L)V8-500cc (8.2L)
Piston-Bore Clearance0.0006 in. - 0.0010 in.0.0006 in. - 0.0010 in.
Ring Side Clearance: Top Compression0.0017 in. - 0.0040 in.0.0017 in. - 0.0040 in.
Ring Side Clearance: Bottom Compression0.0017 in. - 0.0040 in.0.0017 in. - 0.0040 in.
Ring Side Clearance: Oil ControlNone (side sealing)None (side sealing)
Ring Gap: Top Compression0.013 in. - 0.025 in.0.013 in. - 0.025 in.
Ring Gap: Bottom Compression0.013 in. - 0.025 in.0.013 in. - 0.025 in.
Ring Gap: Oil Control0.015 in. - 0.055 in.0.015 in. - 0.055 in.

VALVE SPECS

Engine typeV8-472cc (7.7L)V8-500cc (8.2L)
Seat Angle45°44°
Face Angle45°44°
Spring Test Pressure160 lb @ 1.50 in.160 lb @ 1.50 in.
Spring Installed Height115⁄16 in. (1.671875 in.)115⁄16 in. (1.9375 in.)
Stem-to-Guide Clearance: Intake0.0005 in. - 0.0025 in.0.0005 in. - 0.0025 in.
Stem-to-Guide Clearance: Exhaust0.0010 in. - 0.0025 in.0.0010 in. - 0.0025 in.
Stem Diameter: Intake0.3415 in. - 0.3425 in.0.3415 in. - 0.3425 in.
Stem Diameter: Exhaust0.3415 in. - 0.3420 in.0.3415 in. - 0.3420 in.

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 ID7047030 (4MV)
Float Level1⁄4 in.
Pump Rod11⁄32 in.
Choke Unloader0.300 in.
Fast Idle Speed1925 rpm

WHEEL ALIGNMENT SPECS

FeatureEldoradoFull size
Caster Range1½°N - 2½°N1½°N - ½°N
Caster Pref.2°N1°N
Camber LH wheel Range3⁄8°N - 3⁄8°P3⁄8°N - 3⁄8°P
Camber LH wheel Pref.0°0°
Camber RH wheel Range3⁄8°N - 3⁄8°P3⁄8°N - 3⁄8°P
Camber RH wheel Pref.0°0°
Toe-In0 - 1⁄8 in.1⁄8 in. - 1⁄4 in.
Steering Axis Inclination11°6°

HISTORICAL NOTES

1970 Cadillac Notes

  • A total of 238,745 Cadillacs, built for the 1970 model run, set an all-time divisional record.
  • Calendar year sales totals were off the mark, however, due to a major G.M. strike.
  • They peaked at just 152,859 units.
  • George R. Elges was general manager
  • Carl A. Rasmussen was chief engineer
  • Stanley Wilen was chief designer (Cadillac Studio)
  • F. T. Hopkins was general sales manager
  • Sales of the new Cadillac line began September 18, 1969.
  • The optional Trackmaster skid control system was made available for the Eldorado, subsequent to initial model introduction.
  • Cadillac production figures
Calais19,822 (increased 7,397)
Sedan de Ville90,504 (increased 9,656)
Coupe de Ville76,043 (increased 10,288)
de Ville convertible15,172 (decreased 1,273)
Eldorado23,842 (increased 509)
Series 6018,651 (decreased 1,194)
Series 754,622 (increased 36)