Hi there I'm a new 620 owner and I need some help finding parts or where I can get a catalog for interior parts like door panels , dash inserts that display heat and cool and def stuff like that and the vinyl carpet kit and front driver and passanger fenders thank you guys for any help it's greatly appriciated!!!

there's always some stuff to be found here and there... one spot to check would be rockauto.com

Good luck finding any kind of catalog for your 620. I've been playing with bulletsides for 20 years and have yet to find a catlog for any kind of 620 parts. You might check with Les Cannon at Classic Datsun Parts in CA, he specializes in z and 510 parts but he might be able to help you out. You can always do like I did and recover the door panels yourself or take them to an automotive upholstry shop and have them redone.