The gear is part of the casting, can't be swapped.
The crank is interchangeable, the head is different,
it doesn't have the port cutouts for the Track/Kick
MPEFI system, unless the year you get had MPEFI,
the head we swapped onto my brothers 4 door was
a TBI system, we had to use a die grinder and make
the cutouts, lots of work, but it worked, as a side note
the HC count on the smog machine shows high, we don't
know if it's this head or just a EFI problem.
Wild