| Clue on how it was treated. You know how you abused your own motor. If the compression on the other cylinders are good. After you refresh your heads your numbers will more than likely be the same as the others. While the motor is out check and replace your bearings if nessecary. Also option 1/2 will cost a whole lot less and you'll have fresh heads. I dont know how much engine rebuilds are out your way, but here I have a very reputable z shop that has rebuilt/built several vg for me. And the cost is lower than a jdm motor. (Refreshed block and refreshed heads) 
 
  
 
 
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