Question, Let's say I want to buy a LS with a B16, how do I know for sure what B16 block It is? Dude said it was rated @ 160 and 111 as far as HP & TRQ, and claimed it was 1st gen. Besides the block number, which is just b16, the car has a Y1 , Pics of the motor make me think it's not that old, also what kind of paperwork should I aquire from dude pertaining to the swap? Do i have to tell the D.M. V.? Or just register it, Has anyone ever bought a car "pre swapped" and then had problems as far as emissions and registering it?