55 chevy small block to big block
I have a 55 chevy belair with a 350 semi worked roller motor,dana 60 with 4:10 and a 4 speed .
I want to put in a G.M. performance 454 crate motor.
so...... the question of the day is what's about to go wrong.
will I need new motor mounts,bell housing, flywheel,will the motor clear the firewall or will it need to be recessed ,etc.
thanks in advance for the answers to these questions and any other info you can throw my way regarding this issue.