Manifold inlet 1.75" bore for HS4/HS6 carburettors
The Maniflow steel intake manifold has established the standard by which all others measure themselves. This manifold is specially designed to maximize air flow within the space requirements of a Classic Mini car. It accepts either twin 1 1/2" or twin 1. 3/4" carburettors but has a 1.75 bore size for HS6 carburettor.