1970 CORVETTE

  • Refinements were made to the basic styling used since 1968 which included
    • A new ice-cube-tray design grille and matching side fender louvers
    • rectangular, amber front signal lights
    • fender flares
    • square exhaust exists
    • improved bucket seats and safety belt retractor containers
  • Standard equipment included
    • front and rear disc brakes
    • headlight washers
    • wheel trim rings
    • carpeting
    • center console
    • all-vinyl upholstery (in either black, blue, green, saddle, or red)
  • Ten exterior colors were available
    • Mulsanne Blue
    • Bridgehampton Blue
    • Donnybrooke Green
    • Laguna Gray
    • Marlboro Maroon
    • Corvette Bronze
    • Monza Red
    • Cortez Silver
    • Classic White
    • Daytona Yellow
  • All convertibles came with a choice of Black or White soft tops

I.D. NUMBERS

  • The serial number [Vehicle Identification Number -- VIN] was stamped on a plate on the inner vertical surface of the left windshield pillar visible through the windshield.
  • Convertible Serial numbers ranged from 194670S100001 to 194670S117316
  • Coupe Serial numbers ranged from 194370S100001 to 194670S117316
    PositionCharacterDescription
    11Chevrolet Division
    29body series: Corvette
    34type of engine: V-8
    4 & 567convertible
    37coupe
    601970
    7SAssembled in St. Louis, MO
    8 to 13100001 to 128566production sequence
  • Engine serial number
    1 to 70001001sequential production number
    8F or TFlint, MI or Tonawanda, NY
    9 to 11Carburetion & transmission CodeEngineCompressiontransmissionCarburetorExtras
    CTG350-cid 300-hp V-810.25:1THM-400 automaticfour-barrel 
    CTM350-cid 300-hp V-810.25:1THM-400 automaticfour-barrel 
    CTD350-cid 300-hp V-810.25:1manualfour-barrel 
    CTL350-cid 300-hp V-810.25:1manualfour-barrel 
    CTN350-cid 350-hp V-811.0:1manualfour-barrel 
    CTO350-cid 350-hp V-811.0:1manualfour-barrel 
    CTP350-cid 350-hp V-811.0:1manualfour-barreltransistor ignition
    CTQ350-cid 350-hp V-811.0:1manualfour-barreltransistor ignition
    CTR350-cid 370-hp V-811.0:1M-22four-barreltransistor ignition
    CTU350-cid 370-hp V-811.0:1M-22four-barreltransistor ignition
    CTV350-cid 370-hp V-811.0:1M-22four-barreltransistor ignition
    CGW454-cid 390-hp V-810.25:1manualfour-barrel 
    CZU454-cid 390-hp V-810.25:1manualfour-barrel 
    CZL454-cid 465-hp V-811.25:1manualfour-barrelaluminum heads, transistor ignition
    CZN454-cid 465-hp V-811.25:1THM-400 automaticfour-barrelaluminum heads, transistor ignition
    CRI454-cid 390-hp V-810.25:1manualfour-barrel 
    CTH350-cid 350-hp V-811.0:1manualfour-barrel 
    CTJ350-cid 350-hp V-811.0:1manualfour-barrel 
    CTK350-cid 370-hp V-811.0:1manualfour-barreltransistor ignition
    CRJ454-cid 390-hp V-810.25:1THM-400 automaticfour-barreltransistor ignition
  • Corvette engines have the last six digits of the VIN stamped on the block next to the engine number
  • The body number plate was located on the engine side of the cowl.
  • The Fisher Body Style Number 70-19467 identifies a Corvette Stingray convertible
  • The Fisher Body Style Number 70-19437 identifies a Corvette Stingray coupe
  • The body number is the production serial number of the body.
  • The trim number indicates the interior trim color and material.
  • The ten 1970 Corvette exterior colors were:
    • 976 = Mulsanne Blue
    • 979 = Bridgehampton Blue
    • 982 = Donnybrooke Green
    • 992 = Laguna Gray
    • 975 = Marlboro Maroon
    • 993 = Corvette Bronze
    • 974 = Monza Red
    • 986 = Cortez Silver
    • 972 = Classic White
    • 984 = Daytona Yellow
  • Upholstery Codes
    ColorVinyl UpholsteryLeather Upholstery
    Black400403
    Red407 
    Blue411 
    Brown414 
    Saddle418424
    Green422 

IDENTIFICATION

Series No.Body/Style No.Body TypeFactory PriceShipping WeightProduction Total
19437
2-dr. Sport Coupe - 2 passenger		$51923153 lb10,668
19467
2-dr. Conv - 2 passenger		$48493167 lb6,648

ENGINE

FeatureStandard Engine (RPO ZQ3)Optional Engine (RPO L46)Optional Engine (RPO LS5)Optional Engine (RPO LT1)Optional Engine (RPO LS7)
TypeV-8, Overhead valve
BlockCast iron block
Displacement350 cid454 cid350 cid454 cid
Bore & Stroke4.00 x 3.48"4.251 x 4.00"4.00 x 3.48"4.251 x 4.00"
Compression ratio10.25:111.0:110.25:111.0:111.25:1
Brake horsepower300 @ 4800350 @ 5600390 @ 4800370 @ 6000465 @ 5200
Torque 380 lb-ft @ 3800500 lb-ft @ 3400380 lb-ft @ 4000490 @ 5200
Main bearingfive
Valve liftershydraulicSolid valve lifters
Camshaft  high-performance camshaftHigh-performance camshaftHigh-performance camshaft
Fuel supplyRochester Quadra-Jet four-barrel Model 4MVRochester 750CFM four-barrelHolley four-barrel on aluminum intake manifoldHolley 800CFM four-barrel

TRANSMISSION

Standard Manual Transmission: four-speed manual all-synchromesh transmission with floor-mounted gear shifter Automatic Transmission: Three-speed Turbo Hydra-Matic automatic transmission with floor-mounted gear shifter (optional) Optional Manual Transmission: Heavy duty, close ratio, four-speed manual all-synchromesh transmission with floor-mounted gear shifter

CHASSIS

FeatureConvertibleCoupe
Wheelbase98 inches (2.489 m)98 inches (2.489 m)
Overall length182.5 inches (4.636 m)182.5 inches (4.636 m)
Overall width69.0 inches (1.753 m)69.0 inches (1.753 m)
Overall height 47.4 inches (1.204 m)
Front tread58.7 inches (1.491 m)58.7 inches (1.491 m)
Rear tread59.4 inches (1.509 m)59.4 inches (1.509 m)
TiresF70-15F70-15
FrameFull-length welded-steel ladder type with five cross members. Steel box sections, welded.
Front suspensionIndependent, unequal-length A-arms, coil springs; tubular shocks and stabilizer bar
Rear suspensionIndependent, trailing arms, toe links, transverse chromium-carbon steel leaf spring, tube shocks, and anti-roll bar
SteeringSaginaw recirculating ball, 17.6:1 ratio, 2.9 turns to lock, 39.0 turning circle
Rear axle typeSprung differential, Hypoid gear
BrakesHydraulic, vented four wheel discs; 11.75-inch diameter, single calipers, optional power assist
Swept area11.75" front and back
Total swept area461 sq. in.
Wheels8" wide slotted steel 15" 5-lug disc
Standard rear axle ratio3.36:1
Optional rear axle ratio2.73:1, 3.08:1, 3.36:1, 3.55:1, 4.11:1, 4.56:1

OPTIONS

RPOCustom interior trim$158
RPO A31Electric power windows$63.20
RPO A85Custom shoulder belts$42.15
RPO C07Auxiliary hardtop for convertible$273.85
RPO C08Vinyl cover for auxiliary hardtop$63.20
RPO C50Rear window defroster$36.90
RPO C60Air conditioning$447.65
RPO G81Positraction rear axle, all ratios$12.65
RPO J50Power brakes$47.40
RPO L46350-cid 350-hp V-8$158
RPO LS5454-cid 390-hp V-8$289.65
RPO LT1350-cid 370-hp V-8$447.60
RPO M21Four-speed close-ratio manual transmissionn/c
RPO M22Heavy-duty close-ratio four-speed manual transmission$95
RPO M40Turbo Hydra-Matic automatic transmissionn/c
RPO N37Tilt-telescopic steering wheel$84.30
RPO N40Power steering$105.35
RPO P01Custom Wheel covers$57.95
RPO PT7F70 x 15, white stripe tires$31.30
RPO PU9F70 x 15, raised-white-letter tires$33.15
RPO T60Heavy-duty battery$15.80
RPO UA6Alarm system$31.60
RPO U69AM-FM radio$172.75
RPO U79Stereo radio$278.10

ZR1 OPTIONS

The letter "Z" meant it was part of Chevrolet's "special items" group
It included the following:
  • LT1 engine
  • M22 heavy-duty four-speed manual transmission
  • J50/J56 dual-pin brakes with heavy-duty front pads and power assist
F41 suspension consisting of the following:
  • special 89 lb/in ride rate front springs
  • 121 lb/in ride rate rear springs
  • matching shock absorbers
  • a 0.75-inch front stabilizer bar

HISTORICAL NOTES


  • Corvette built only one car with the LS7 engine. The editor of Sports Car Graphic drove it for 2500 miles and found it did the quarter mile in 13.8 seconds at 108 mph. GM cancelled the option even though the LS7 option is listed in some early 1970 sales literature. None were ever sold.
  • 70.5 % of 1970 Corvettes were sold with four-speed manual transmissions
  • 33.5 % had tilt steering wheels
  • 27.9 % had power windows
  • 38.5 % had air conditioning
  • 68.8 % had power steering
  • A 1970 Corvette with the L56 engine could do 0-to-60 mph in seven seconds and go from 0-to-100 mph in 14 seconds
  • A 1970 Corvette with the LT1 engine could do 0-to-30 mph in 2.5 seconds, 0-to-60 mph in 5.7 seconds and go from 0-to-100 mph in 13.5 seconds
  • A 1970 Corvette with the LT1 engine could do the quarter mile in 14.17 seconds at 102.15 and had a top speed of 122 mph

1955 CORVETTE PHOTOS


1970 Corvette

1970 Corvette

1970 Corvette

1970 Corvette

1970 Corvette

1970 Corvette




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