been done to death here. Youll need: drop center link, LA motor with 64-66 manifolds, Push button LA trans....(or cheaper, just a LA 904 and a Hurst Pro-matic or similar shifter). Also get the 2 LA motor brackets as your K is the same 6 or 8. up to 68 motors had one side torque convertor, 68 and newer had another so match your trans to your motors break year. Agree with Professor Fate, get it to a trans shop and find out whats up with the trans. could be just a front pump or more than likely a linkage issue.
