1973 Plymouth Road Runner Overview

Road Runner

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Road Runner

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Plymouth Road Runner Questions

Engine Swap

Stupid question time so please bear with me. I have a '73 RR with a 400. I want to swap to a pre-emissions 440. I found on built in '68, I know the motor mounts are the same between a 400 and 440 fo...

Vin Code

VIN code for 1973 road runner stated RM21H3C, I thought should be RM23H3C??? Does the 21 mean something different?

10

I Have A 1973 Plymouth Roadrunner. I Need A Heater Core Without A/c. Will...

Is This A Real Roadrunner

I am looking to buy this plymouth car that I found. I belive it is a 73 roadrunner. All I got was the vin on the dash. It reads. RN21H3G. Can any one tell me if it is a real roadrunner or not

What Engine Came Stock In My 1973 Road Runner

Vin# RM21L3R3215XX for my car. I can't find a reference for an engine L code for 1973. What would it be? The car was made in Canada. I don't have a fender tag or build sheet for the car.