Indmar Marine - Ford Small Block V8, 302/351 Cu-In Exhaust System Products Gasket, Riser #107311 $6.00 3" Exhaust Outlet, 15 Deg Down Angle #104040N $103.45 Gasket, Manifold to Riser #107310 $6.00 Mounting Kit, Riser #992-MK-FW $9.25