Thanks for reading!
I picked up a 1969 Plymouth Belvedere 47000 miles! Underdash Dealer Install A/C! 318 has blown head gasket and leaking feeze plug. Considering dropping a 383 in it.

Needs the following:

Radiator
Core Support
Drivers Fender
Lower valance that goes behind front bumper
Grille center headlight bezels ok

Used 383?

Let me know any and all thoughts and what advice. I am an open book on this one.