tundra2000

So I need a new block for my 1995 honda civic ex that has a d16 in it, i got a parts car that has a d15 in it. If i put the d15 block in my civic and put the vtec head on with it, would it lose power since it's .1 liter smaller then the d16, and to swap the block out would i have to pull the tranny out with it or can i just un bolt it from the block and slid the block over then pull it out, but if i got to pull the tranny out with it how would i go about doing that since it would be connected to the axles.