L67SS is right, I have one in my car right now. If the engine is good, You'd want to use the entire thing. They have better rods and pistons, a little better oil pressure, and the head flow a bit better (but you'd have that benefit anyways with a top swap). I have mine set up with a L67 TB adapter, but I think if I had to do it all over again I'd go with a N* adapter. I had to drill\tap my TB to have functioning PCV, and it's bore is smaller than the Gen V's inlet. I also ran the stock L67 fuel rail with no issuesIt runs great though, plenty of power, nice whine, runs smooth as silk. You can see the TB plate and such here:
