The coupe Plymouth Road Runner 1968 - 1970 year modification 7.0 MT (431 hp)

Engine
Engine type	petrol
Engine capacity, cm³	6981
Boost type	No
Maximum power, hp/kW at rpm	431 / 317 at —
Maximum torque, N*m at rpm	664 at —
Cylinder arrangement	V-shaped
Number of cylinders	8
Number of valves per cylinder	2
Engine power supply system	carburetor
Compression ratio	10.2
Cylinder diameter and piston stroke, mm	108 × 95.3
General information
Brand country	USA
Number of doors	2
Sizes in mm
Length	5156
Width	2009
Height	1344
Wheelbase	2921
Suspension and brakes
Type of front suspension	independent, spring
Type of rear suspension	dependent, leaf spring
Front brakes	drum
Rear brakes	drum
Transmission
Transmission	mechanical
Number of gears	4
Drive type	rear

Plymouth Road Runner: A Classic American Muscle Car

The Plymouth Road Runner is an iconic American muscle car that epitomizes the raw power and bold design of the late 1960s. Produced between 1968 and 1970, this two-door coupe was designed to deliver high performance at an affordable price, making it a favorite among car enthusiasts. With its powerful V8 engine, manual transmission, and rear-wheel drive, the Road Runner was built for speed and agility. Its distinctive design and no-frills approach to performance have cemented its place in automotive history as a true classic.

Engine and Performance

At the heart of the Plymouth Road Runner lies a massive 7.0-liter V8 petrol engine, capable of producing an impressive 431 horsepower and 664 N*m of torque. This carbureted engine features a V-shaped cylinder arrangement with eight cylinders and two valves per cylinder, delivering a compression ratio of 10.2. The engine's power is harnessed through a 4-speed manual transmission, providing drivers with full control over the car's performance. The rear-wheel-drive system ensures excellent traction and handling, making the Road Runner a thrill to drive on both straightaways and winding roads.

Design and Dimensions

The Plymouth Road Runner boasts a classic coupe design with a length of 5156 mm, a width of 2009 mm, and a height of 1344 mm. Its wheelbase measures 2921 mm, contributing to its stable and balanced ride. The car's aggressive stance and bold lines reflect its muscle car heritage, while its lightweight construction enhances its speed and maneuverability. The two-door configuration adds to its sporty appeal, making it a head-turner on the road.

Suspension and Braking

The Road Runner features an independent front suspension with springs and a dependent rear suspension with leaf springs, providing a smooth and responsive ride. While the car's drum brakes on both the front and rear may seem outdated by modern standards, they were sufficient for the era and contribute to the car's authentic vintage feel. However, enthusiasts looking to upgrade the braking system for improved safety and performance can easily do so.

Pros and Cons

The Plymouth Road Runner offers a unique blend of power, style, and nostalgia. Its pros include:

Powerful 7.0-liter V8 engine with 431 horsepower
Classic muscle car design with a bold and aggressive stance
Affordable performance, making it accessible to a wide range of enthusiasts
Rear-wheel drive and manual transmission for an engaging driving experience

However, there are some cons to consider:

Drum brakes may require upgrading for modern driving conditions
Limited production run (1968-1970) makes it a rare find
Basic interior features compared to modern vehicles

Conclusion

The Plymouth Road Runner is a legendary muscle car that continues to captivate car enthusiasts with its powerful engine, iconic design, and thrilling performance. While it may lack some modern amenities, its raw power and timeless appeal make it a standout choice for collectors and drivers who appreciate classic American automotive engineering. Whether you're cruising down the highway or showcasing it at a car show, the Road Runner is sure to leave a lasting impression.