Im looking to install a new 302 long block from FRPP aluminum gt-40x head b-303 cam version. i also have a T-56 trans. my qusetion is can i remove and install the engine while connected to the motor or do i need to remove it first. Also how much of a pain is it to R&R a new motor in a sn-95 chassis? with jack stands and typical hand tools no air tools?