KentT said:
BTW, most Roadrunners were 383s or 440s, and not 426 Hemis. The 440 was the Nascar "oval-track" motor, the 426 Hemi was the NHRA dragstrip motor...
Please give more details...
Most Roadrunners in the 60's were 383's, and then 440's. Hemi's were a premium. The Roadrunner was started as a basic, low options, low priced performance car; it met that goal for the first couple years.
The Hemi(426) was a race motor; both NASCAR, USAC, and drag motor. The 426/4bbl was the NASCAR motor, while the 426/8bbl was the street and drag motor.
The Hemi was the NASCAR motor till '71. Between the Aero cars(Daytona/Superbird) and the Hemi, speeds were becoming outrageous(wing car record was not broken for years), and the elephant motors made too much power. The only one who could compete was Ford with thier 427 cars, but only after the Hemi's were detuned/restricted. Chevy was not even in the picture then.
In '71/72, the only way Mopar could run the winged cars was with a 5.0L motor... I am unsure about the Talledega's/Cyclones from Ford/Mercury wether they could still run, or if the small motor restriction affected them too.
Interesting thing, even though I am a Mopar fan, is the winged Mopars split about 50/50 with aero Fords; they did not run away with the standings...
The other thing I find interesting, is Superbirds start on Ebay at $125k or so and go up from there. The only Talledega I have seen advertised on the web was going for about $35k, in really nice condition.