These Trick Flow® Box-R-Series upper intake manifold hardware kits include all the hardware originally packaged with a Trick Flow® manifold. Kits include: * 4 ft. Viton® O-ring cord * Six 5/16-24 in. nuts * Six 5/16-24 in. x 2 in. studs * Ten 1/4-20 in. x 1 1/4 in. socket head cap screws * Thirteen 1/4-20 in. x 7/8 in. stainless steel button head screw * One box to upper flange gasket * One upper to lower manifold gasket