MERCURY MARINER, 2.5L, 200Hp BLOCK. This is a 1990 2.5 EFI 200hp block. This block ” does not” have the exhaust relief slots . Very desirable block. Never been blown or welded. The cylinders are wore and will need to be bored. Currently the block is std bore. This was originally a 7 pedal front motor. Can be rebuilt with a 7 or 5 pedal front, whichever you prefer.