NOS Mopar Performance 1968-69 340 383 440 HP 14" unsilenced black air cleaner, part number P4529001. 4 7/8" base opening should fit all carbs except AFB. Thanks for looking in our store. If you are not sure if this part fits your application please ask questions. Check out our other great items. Free Shipping. Most orders shipped within 72 hours unless I'm away on business. Satisfaction guaranteed or your money back.