well i swaped a b18a in to my hatch.. got it together and it ran like **** .. found out it was bad no oil pressure didnt even get to drive it... put a b18b in that was good,(got it form a friend).. drove good for one nite .. started runing like **** and knocking next thing you know the oil light is on.. damnit.. maybe put like 20 miles on new motor. the first one i figured it was just bad to begin with but the 2nd one just going like that.. is it just bad luck or could something be causing the motors to go bad???????