For small block Chevy motors with short water pump (5-5/8” from the block surface to the fan mounting surface). This mount attaches using the water pump mounting holes and the longer bolts supplied in the kit. No cylinder head holes are required. The alternator mounts above the intake manifold. Designed for GM pre-computer (generally 1987 and older) alternators. Center of the alternator pulley will be about 7-1/4” above the top water pump mounting bolt hole. Note that this kit blocks the heater hose connection to the water pump. Parts included as pictured above plus all hardware.