ok so my pisoton off my block had rusted and seized due to a bad head gasket. i found a d16y7 block and is my only option currently, and was curious if it fits perfectly if i mate it with the d16y8 head? how do you do it? i have all the y8 components becus the car is factory w/ y8 but i have no luck finding a y8 block only y7 currently will it fit and are there any fabrications??? thanks