This plate is for the use of 71 Series Supercharger on a TBS Billet LS Manifold Base. Includes: 1ea – Top Plate (71 Series Blower) 10ea – 5/16-18 x 1″ S.H.C.S. Stainless Steel 2ea – .308 x 1″ Dowel Pins 1ea – #4900 Universal Base Gasket 5.5ft – #4903 1/8″ O-ring cord stock Note: #2590 Aluminum Stud and Nut Kit NOT INCLUDED