In a nutshell, here's the problem. The starter won't fully engage the flexplate after the headswap. We pulled the motor to do the swap and changed the converter to an 11 1/4 Marauder spec with the corresponding 6 bolt flexplate. Now it's all back together and when turning the key, the armature ejects and spins but does not engage the flexplate teeth. We even replaced the starter with a new one thinking it wasn't strong enough to work, but the new one does the same thing. Any ideas???