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1970 Chevrolet Chevelle RPO Z15 Super Sport 454 V8 Convertible

  • Chassis Number: 136670B161703
The intermediate-size Chevelle was introduced by Chevrolet in 1964. The public was impressed and sales were strong; in 1970, over 440,000 examples were sold. Chevrolet's ads for the Chevelle stated 'performance starts as soon as you're seated.'

The Chevelle in SS 454 guise was a very special vehicle, powered by the LS6 Turbo-Jet 454 V-8 option and produced an advertised 450 horsepower at 5,600 RPM and 500 foot-pounds of torque at 3,600 RPM, which were the highest performance numbers of the muscle car era. This was a factory option that could be purchased by anybody and cost just an extra $263.30 on the window sticker. In total, around 4,475 buyers made that choice and along with the high performance, also received higher insurance premiums. The car was capable of running quarter mile times in 13.44 seconds at a speed of 108 mph, utilizing 8.4 mpg of premium fuel.

The LS6 engines were assembled at Chevrolet's engine production facility in Tonawanda, New York. Workers began with a four-bolt block that featured pre-tapped holes for a track-ready external oiling setup. The block housed an alloy steel crankshaft that was cross-drilled to maximize oiling capabilities. Tied to the crank by 7/16-inch rod bolts were eight forged steel connecting rods (magnafluxed for added rigidity). Eight TRW forged aluminum pistons squeezed the fuel/air mixture to an 11.25:1 compression ratio. Heavy-duty 3/8-inch pushrods transferred cam timing to the valves through 16 sets of beefy dual valve springs. The engines were given a Holley four-barrel carburetor on an aluminum dual-plane intake. Deep-groove pulleys and a modified distributor were fitted, and a large air cleaner to take air from the RPO Code ZL2 cowl induction hood was also included. With the engine, mandatory options included the M22 Muncie four-speed transmission and a heavy-duty battery.

In 1970, Chevrolet produced 53,599 examples of the Chevelle Super Sport (SS). Of those, just 8,773 were SS 44s and just 4,475 included the LS6 option, with the majority built as two-door coupes. The exact production figure for 1970 LS6 Convertibles is not known, but is estimated to range from 20 to 80.

This LS6 Chevelle Convertible was previously part of the Milton Robson collection. He acquired the car in March of 1991 from another well-known muscle car collector, Carl Dwiggins, who restored the Chevelle from the ground-up.

The current owner acquired the car in November of 2010 and has properly stored this 50,000-mile car. It is painted a Medium Turquoise Metallic (Code 34), with a white convertible top and parchment interior that features optional Strato-bucket seats. It rides on the appropriate white letter Goodyear Polyglas tires ride on Magnum 500 wheels, and the car is fitted with an AM radio, a clock, and full instrumentation. The car has an additional two unique features which include the stripe delete and the cowl-induction delete.

By Daniel Vaughan | Jan 2015

2018 Mecum : Monterey

Pre-Auction Estimates :
USD $250,000-USD $300,000 
High Bid (Lot was not sold)
USD $260,000

2015 RM Auctions - Automobiles of Arizona

Pre-Auction Estimates :
USD $225,000-USD $300,000 
Sale Price :
USD $225,500

2010 RM Auctions - The Milton Robson Collection

Pre-Auction Estimates :
USD $300,000-USD $500,000 
Sale Price :
USD $214,500

1970 Chevrolet Chevelle Auction Sales

Recent Sales of the Chevrolet Chevelle

(Data based on Model Year 1970 sales)
1970 Chevrolet Chevelle
Chassis#: 136370k165070
Sold for USD$41,800
  2024 Mecum : Glendale
 
1970 Chevrolet Chevelle Custom
Chassis#: 136370l201739
Sold for USD$106,700
  2024 Mecum : Glendale
 
1970 Chevrolet Chevelle LS6
Chassis#: 136370b139640
Sold for USD$126,500
  2024 Mecum : Glendale
 
1970 CHEVROLET CHEVELLE CUSTOM CONVERTIBLE
Chassis#: 136670K110823
Sold for USD$95,700
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE CUSTOM COUPE
Chassis#: 136370K206236
Sold for USD$116,600
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE SS CUSTOM COUPE
Chassis#: 136370A119053
Sold for USD$73,700
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE SS 454 CUSTOM COUPE
Chassis#: 1363701562986
Sold for USD$55,000
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE CUSTOM COUPE
Chassis#: 136370A139072
Sold for USD$99,000
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE MALIBU CUSTOM COUPE
Chassis#: 136370A107821
Sold for USD$79,200
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE CUSTOM COUPE
Chassis#: 136370L186462
Sold for USD$62,700
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE CUSTOM CONVERTIBLE
Chassis#: 136670B183099
Sold for USD$112,200
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE SS 396
Chassis#: 136370L159206
Sold for USD$107,800
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE SS 396
Chassis#: 1363701535486
Sold for USD$66,000
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE CUSTOM COUPE
Chassis#: 136370R210201
Sold for USD$63,800
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE SS LS6
Chassis#: 136370B136890
Sold for USD$115,500
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE SS RE-CREATION
Chassis#: 1343701564781
Sold for USD$88,000
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE SS 454 RE-CREATION
Chassis#: 136370B158837
Sold for USD$66,000
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE CUSTOM COUPE
Chassis#: 1363701546502
Sold for USD$115,500
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE CUSTOM COUPE
Chassis#: 136370L171974
Sold for USD$68,200
  2024 Barrett-Jackson : Scottsdale AZ
 
1970 CHEVROLET CHEVELLE CUSTOM COUPE
Chassis#: AZ387730
Sold for USD$74,800
  2024 Barrett-Jackson : Scottsdale AZ
 

Chevrolet Chevelles That Failed To Sell At Auction

1970 Chevrolet Chevelle's that have appeared at auction but did not sell.
VehicleChassisEventHigh BidEst. LowEst. High
1970 Chevrolet Chevelle136370k1493172024 Mecum : Glendale$80,000$150,000$160,000
1970 Chevrolet Chevelle136370r2401002024 Mecum : Glendale$55,000  
1970 Chevrolet Chevelle LS5136370k1553962024 Mecum : Glendale$70,000  
1970 Chevrolet Chevelle Custom136370l1917232024 Mecum : Glendale$70,000$125,000$150,000
1970 Chevrolet Chevelle LS5 SS Convertible136670B1786522024 Worldwide Auctioneers : Scottsdale   
1970 Chevrolet Chevelle136370k1729402024 Mecum : Kissimmee$65,000  
1970 Chevrolet Chevelle SS136370a1105462024 Mecum : Kissimmee$60,000  
1970 Chevrolet Chevelle136370b2070082024 Mecum : Kissimmee$24,000  
1970 Chevrolet Chevelle136370l1311772024 Mecum : Kissimmee$90,000  
1970 Chevrolet Chevelle LS6136370k1453292024 Mecum : Kissimmee$140,000$200,000$225,000
1970 Chevrolet Chevelle SS Convertible136670b2005852024 Mecum : Kissimmee$160,000$250,000$350,000
1970 Chevrolet Chevelle SS136370r2421872024 Mecum : Kissimmee$75,000  
1970 Chevrolet Chevelle SS13637015220942024 Mecum : Kissimmee$52,000  
1970 Chevrolet Chevelle136370a1358792024 Mecum : Kissimmee$57,000  
1970 Chevrolet Chevelle136370a1269022024 Mecum : Kissimmee$70,000  
1970 Chevrolet Chevelle136370r2632782024 Mecum : Kissimmee$52,000  
1970 Chevrolet Chevelle SS Custom136370r2213662023 Mecum : Kansas City$32,000  
1970 Chevrolet Chevelle Custom135370k1840662023 Mecum : Kansas City$85,000  
1970 Chevrolet Chevelle SS136370r2063102023 Mecum : Chattanooga$50,000  
1970 Chevrolet Chevelle SS136370b1852272023 Mecum : Chattanooga$65,000  
1970 Chevrolet Chevelle SS136370r2063102023 Mecum : Dallas$55,000  
1970 Chevrolet Chevelle SS13637015354862023 Mecum : Dallas$60,000  
1970 Chevrolet Chevelle LS6136370a1466822023 Mecum : Monterey$175,000$235,000$275,000
1970 Chevrolet Chevelle SS136370l1882592023 Mecum : Monterey$90,000$125,000$150,000
1970 Chevrolet Chevelle Convertible136670b1657742023 Mecum : Monterey$80,000$125,000$175,000
1970 Chevrolet Chevelle SS136370b1852272023 Mecum : Harrisburg$75,000  
1970 Chevrolet Chevelle Pro Touring136370b1143552023 Mecum : Harrisburg$110,000  
1970 Chevrolet Chevelle SS136370b1497672023 Mecum : Harrisburg$65,000  
1970 Chevrolet Chevelle LS6 Convertible136670b1981052023 Mecum : Harrisburg$130,000  
1970 Chevrolet Chevelle Convertible136670k1108232023 Mecum : Harrisburg$52,000  

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1970 Chevrolet Chevelle

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