a friend just bought a military blazer without the 6.2, he has a 89 injected 350 that i sold him(with the harness). will that bolt up to the th400 ..? would he need to change the stall conv also will the fly wheel work....is there anything else besides the wiring and the motor mounts.. that needs to be changed, we are gathering parts to put this togeather...help is much appreciated.......thanks