Milodon aluminum blower studs and aluminum nuts are designed to permit blower and manifold separation during unexpected blower explosions without causing damage to the manifold and blower housing, which would otherwise occur. These studs are used by professional racers in Top Fuel, Funny Car and Alcohol classes and are recommended for all supercharged applications. Fits 4.71, 6.71, 8.71, 10.71, 12.71, 14.71 GM Superchargers.