Hi friends, I'm a novice in engines stuff, I wanna swap my father's '78 C-30 truck from inliner six into 454 but I'm confused. some guys told me I have change the front crossmember. Is this true? what else I have to do? (aside including other gas tank and of course swap engine ) oh yes, I'm thinking about swaping 4.56 to 3.42 gears I would like to know your opinion.