1970 Plymouth Road Runner

The 1970 Plymouth Road Runner received fresh new styling on the front and rear and a new Air Grabber Hood was added to the list of options which consisted of a under mounted dash switch that opens a power operated trap door on the hood, revealing a shark cartoon with the words "Air Grabber". Under the hood, engines were basically unchanged, although 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.

 

1970 Plymouth Road Runner Production

Model Number	Body/Style Number	Body Type & Seating	Factory Price	Shipping Weight	Total Production
FR2	RM21	2 Dr Coupe - 6P	$2,896	3,450 lbs	15,716
FR2	RM23	2 Dr Hardtop Coupe - 6P	$3,034	3,475 lbs	24,944
FR2	RM23	2 Dr Superbird - 6P	$4,298	3,785 lbs	1,920
FR2	RM27	2 Dr Convertible - 6P	$3,289	3,550 lbs	824

Chassis Data

Model	Wheelbase	Overall Length	Tires
Road Runner	116 in	204 in	F78 x 14

1970 Plymouth Road Runner Engines

383 V8 335 hp
426 Hemi V8 425 hp
440 V8 375 hp
440+6 V8 390 hp

Performance:
383/335hp: 0-60 in 7.1 sec, 1/4 mile in 15.0 sec @ 96 mph.
426/425hp: 0-60 in 5.3 sec, 1/4 mile in 13.49 sec @ 105 mph.