Accessory Belt length

Are these the stock pulleys?

yes for 70-up.... now that i've seen your picture you have 69-down style water pump and pulleys on your car..

here is the proper belt for ya...


1969 DODGE DART 5.6L 340cid V8 Belt | RockAuto

GATES 7460 {Click Info Button for Alternate/OEM Part Numbers} High Capacity V-Belt (Standard); 13/32" x 46-5/8" Info
Fan and Alternator; w/o Air Conditioning