This rare 1970 Plymouth Road Runner (chassis RM23N0A142952) is a worthy restoration candidate featuring its numbers matching 383 and 4-speed drivetrain. Though no claims of the car being complete are conveyed, it appears that mostly everything is accounted for aside from the rear seat, air cleaner, outside trim and more. The vehicle has been painted the factory-correct color base coat.
A cool feature of the car is its Air Grabber hood (N96 option). Although most everything inside is fairly complete, aside from carpet, radio, etc. the cabin is still quite a mess.
The fender tag is a bit crispy but it is still legible for the most part, though please note that the build sheet is not found in the car. Paint looks like it could be the original lemon twist finish, and according to coded info, the car was optioned with a stripe package. Here’s a handy VIN decoder along with a fender tag decoding tool and a color chart.
The car sat on the side of a house for years in South Carolina. Usual rust around rear window and bottoms of both quarters but surprisingly everything else is pretty solid
The serial numbers are present on the block and 4-speed transmission, both of which appear to be original to the car.
Car just had several thousand dollars worth of service work to get the car running and driving again after almost 40 years of being off the road. It will run & drive around a parking lot and onto a trailer.
$7,000 in recent work completed. Inquire for detailed list.
1970 Plymouth Road Runner Specifications (New in 1970)
Base price: $2,896.00
Price as profiled: $3,606.50 (approx.)
Available factory options when new: Torque Fliter automatic transmission, $227.05; 15-inch Rally road wheels, $43.10; F60 x 15-inch raised white-letter tires, $113.20; Tachometer with clock, $68.45; Basic Group, including AM radio, power steering, remote-control left-hand outside mirror, $177.20; Road Runner Décor Group, including rear transverse tape stripe, B-pillar molding, steering wheel with partial horn ring, bright door panel trim moldings and bright armrest bases, $81.50.
Engine
Type: Chrysler B-series OHV V-8, cast-iron block and cylinder heads
Displacement: 383 cubic inches
Bore x stroke: 4.25 x 3.38 inches
Compression ratio: 9.5:1
Horsepower @ RPM: 335 @ 5,200
Torque @ RPM: 425-lb.ft. @ 3,400
Valvetrain: Hydraulic valve lifters with high-lift, high-performance camshaft
Main bearings: 5
Fuel system: Single Holley four-barrel carburetor
Lubrication system: Pressure, gear-type pump
Electrical system: 12-volt
Exhaust system: Cast-iron high-flow exhaust manifolds, dual exhaust pipes and mufflers
Transmission
Type: Chrysler A727 Torque three-speed automatic
Ratios:
1st: 2.45:1
2nd: 1.45:1
3rd: 1.00:1
Reverse: 2.20:1
Differential
Type: Chrysler 8.75-inch with hypoid-type gears
Ratio: 3.23:1
Steering
Type: Power-assisted recirculating ball
Ratio: 28.8:1
Turns, lock-to-lock: 3.5
Turning circle: 40.6 feet
Brakes
Type: Hydraulic, power assist
Front: 11 x 3-inch drums
Rear: 11 x 2 1/2-inch drums
Construction: Unitized body
Body style: Two-door pillared coupe
Layout: Front engine, rear-wheel drive
Suspension
Front: Independent; unequal length control arms, torsion bars, tubular shock absorbers, anti-roll bar
Rear: Leaf springs (4 1/2 per side); tubular shock absorbers
Wheels & Tires
Wheels: Stamped-steel road wheels (Rallye) with bright trim ring
Front: 15 x 7 inches
Rear: 15 x 7 inches
Tires: Goodyear Polyglas GT bias-ply
Front: F60 x 15
Rear: F60 x 15
Weights & Measures
Wheelbase: 116 inches
Overall length: 203.8 inches
Overall width: 76.4 inches
Overall height: 53.3 inches
Front track: 59.7 inches
Rear track: 59.2 inches
Shipping weight: 3,420 pounds
Capacities
Crankcase: 5 quarts (with filter)
Cooling system: 17 quarts
Fuel tank: 19 gallons
Transmission: 3.75 quarts (pan)
Rear axle: 3.75 pints
Calculated Data
Bhp per cu.in.: 0.87
Weight per bhp: 10.21 pounds
Weight per cu.in.: 8.93 pounds
Production
Plymouth produced 43,404 Road Runners in 1970, of which 15,716 were two-door coupes.
Performance*
Acceleration
0-60 MPH: 7.3 seconds
1/4-mile ET: 14.70 seconds @ 94.36 MPH
*Source: Motor Trend, February 1969, test of a 1969 Plymouth Road Runner equipped with the 335-hp, 383-cu.in. four-barrel engine, TorqueFlite automatic and 3.23 axle.
