Engine compatibility questions*PLEASE HELP*


Does anyone know how compatible 1st gen's are with 2nd gen's?
I have a '95 lsc that i drag race,I also have a '98 parts car. I would like to take the motor out of the '98,and have it built. My question's are-
Are the blocks the same ? Will the 95 aode work with a '98 block ?
Do heads,and/or intake from a '95 fit on a '98 , and vice/versa ?

Any help will be greatly appreiciated