This is for a new V8 small block fuel pump. This pump is correct for all small block engines in a 58-66 Chevy cars except dual quads or fuel injections. This pump has the inlet and outlet fittings in the correct location and is rotatable if you desire. The inlet and outlet fitting are the larger 1/4x18 pipe thread. This pump will work on a 265, 283, 307, 327, 350 and 383 engines. Sku# 3858