I am dropping a B20 into my integra and i wanted to know if i needed to sleeve my block when i went B20/ vtec. And of course i will get Dart sleeves if i need to do it. As you guys should know a B20 isnt made for vtec, my boy has a B20 vtec and he was runnin so hard that the block had scars on the walls. Just wanted to know what you guys thought.