The 1970 Plymouth Road Runner Hemi

Specifications

• Wheelbase, inches: 116.0

• Weight, lbs: 4,000

• Number built: 152

• Base price: $5,000

• Top Available Engine

• Type: ohv V-8

• Displacement, cid: 426

• Fuel system: 2 x 4 bbl.

• Compression ratio: 10.25:1

• Horsepower @ rpm: 425 @ 5000

• Torque @ rpm: 490 @ 4000

• Representative Performance

• 0-60 mph, sec: 5.6

• 1/4 mile, sec @ mph: 13.49 @ 106

Detailed Visual Inspection Notes by Galen’s Tag Service, LLC:

1970 PLYMOUTH Road Runner 2 Door Hardtop:

V.I.N. R M 2 3 R 0 G 1 8 1 7 5 5 MILEAGE 59,185.

AREA ACCURACY+CONDITION

BODY & PAINT: Top/Bottom: EB5-Blue Fire Metallic

• N96 Hood: Correct. Missing V8W Stripes. Radiator support is black. Correct

CHROME & GLASS: Exterior trim: Correct. Potmetal: Correct. Solex Glass: New W/S. Backlight: Correct.

• Antenna: Fixed. Nameplates: Correct. Side Markers are: Correct. Outside Mirror: Added RH.

03 INTERIOR & SEATS: Interior trim: P6XA. Ft Seats: Correct. Dash pad & carpet: New. Headliner: Correct.

• Instruments: Correct. S81 Steering Wheel: Correct. R11 Radio: Correct. Hurst Shifter: Correct.

04 ENGINE: Color: Correct. Air Cleaner: Correct. Carburetors: Carter AFBs. Valve Covers: Correct. PCV: Correct.

• Intake manifold: 1966. Exhaust manifolds: Correct. Alternator & Fan Assembly: Correct.

05 ENGINE COMPT: Horn: Correct. Washer tank: Repro. Wiper Mtr: Painted Black.

• Steering gear assembly: Power. Battery: Incorrect. Cables: Replaced. Radiator: Correct.

06 TRUNK: Deck lid: Correct. Quarter panels: Replaced. Trunk floor: Replaced. Trunk mat: Plaid.

• Spare tire/assembly: F70x14”.RWL Spare wheel: Correct. Bumper jack assembly: Correct.

07 CHASSIS: Oil pan: Repro. Transmission: 1971. Axle: Dated 3.54 Dana 60. Leaf springs: Correct.

• Brakes: Ft Disc. Exhaust: w/Resonators. Sway Bar: Correct. K-Frame: Original. Floor pans: Sprayed Black.

08 TIRES/WHEELS: Size/Sidewall/Brand: G70-15 RWL Firestone Wide Oval. Original: F70x14 WSW.

• Wheels/Wheel covers-Width/Style: 15” Stamped-Painted Body Color w/Hubcaps. Original: 14x6.0

09 SAFETY CK: Everything in excellent working condition. Seat & Shoulder Belts: Correct.

Contact us for complete professional grade report of present condition.

The Air Grabber hood was standard on 1970 Plymouth Road Runners with the 426-cid Hemi engine and available with either 440. The driver would trip an underdash switch, causing the power-operated trap door to rise slowly, revealing a planed-off scoop with a snarling shark cartoon painted on its side -- just the thing for psyching out the opposition at stoplights. The source of the car's whimsical "beep-beep" horn sound was a purple underhood module.

Externally, the 1970 Plymouth Road Runner Hemi was restyled with handsome loop-motif front and rear ends and dummy rear-fender scoops. Under the hood, powertrains were basically unchanged, though the 426 Hemi engine went from solid to hydraulic lifters in the interest of greater durability and cleaner emissions, and the Road Runner's standard four-speed manual moved to the options list, replaced by a heavy-duty three-speed.

Plymouth Road Runner sales slipped from 43,400 to about 39,600 units for '70, of which 75 hardtops, 74 pillared coupes, and three convertibles got the optional 426 Hemi engine. Of course, performance wasn't compromised. A Hemi-equipped 1970 Plymouth Road Runner could accelerate from 0 to 60 mph in 5.6 seconds and blaze the quarter mile in 13.49 seconds at 106 mph.

"How Plymouth Road Runners Work" by the Auto Editors of Consumer Guide, 2023. Retrieved from HowStuffWorks: https://musclecars.howstuffworks.com/classic-muscle-cars/1970-plymouth-road-runner-hemi.htm


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