So my civic has a stock h23a1 in it but I wanna go with LS vtec what should I do I can buy a LS block for 75$ and it's bored ease help me

 

so, we need more info to go by. From what I understand, you have a 93 civic with an H23a1 swap? and you want to put an LS into it?.... Why would you want to downgrade in power?

If what I said is correct, you can't swap a b-series back into that car, for I guarantee that the trans mount on the car has been cut off to make run for the H series trans.