I am about to buy a 91' civic hatch. The engine is f***ed up and he's throwing in a spare, but it need a new water pump and all the gaskets changed... I'm thinking about swapping the stock engine for a b20 engine. Will it fit?

 

it'll fit with mounts and everything else like the rear t-bracket , and axles and shift linkage

 

and ECU

 

and even a tranny

 

would the civic tranny fit on the b20?