front rotors for '70 340 swinger

Mark Nixon said
$86 each at this link:
http://www.partsamerica.com/ProductList.aspx?parttype=221&searchfor=Disc/Rotor&ptset=A

Mark.

Mark

I see these Raybestos rotors. Are they 5 x 4" BC? It only says they will fit Valiants and Barracudas 65-72 with 273 V8

Can I assume they will therefore fit any Dart 65-72 (Mine is a 440, originally an H code 383)

How did they work out for you?
Thanks
Chas