I located a 460 Lincoln motor. I understand they are identical to the Ford truck motors except for accessory brackets and such. (if I'm wrong, let me know) It has D3VE heads. Are those heads better or worse than my E8TE heads from my '87? Also, if you run across a motor with D3VE heads and a D2VE block, would you assume the engine has been rebuilt before or that it was a year end factory build that used parts from both '72 and '73? I have no background on this engine but it is very clean with no signs of oil leakage. I have not torn it apart because I can purchase another enigne that I know will work but it;s a little oil soaked and a couple hundred dollars more. Help is appreciated.