Ok I have a bone stock 97 integra with a b18b1. I just found a nice bare b18a1 block for a great price and im considering buying it so I can build it for my teg. My question is will I need to change anything to put this a1 block in my car? Would I be taking a loss from going down in years with my this block? Ive tried searching but I cant find a streight up answer! Any imput would be greatly appriciated! Thanks for reading!

 

b18a1 is an obd1- or obd0. The issues will be o2 sensor plug, dizzy, maybe even some wiring locations and fuel injectors. If it's JUST the block...it might not really affect anything.