need help on which route to take for a motor

[Cbrown67]

i need some opinions
I am looking at my options as far as a motor

I am having a toruble deciding between a 327 a 350 a 427 or a 454

here is what it would go in
69 c20 with 38 inch tires on it. im not looking to go wheeling with this truck more for show

now i know 327's love reving high 350's are very coman so parts are plentaful and with big blocks you can gain massive amoutns of tourque and high horse power which some inside work

now i dont think i would need a 4 bolt main of any point ebcause i dont plan on beating the snot out of it wheeling

let me know what you guys think