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Return to Parts List Category : D- Big Block (Low Deck) : Gaskets & Valley Plates : Valley Plates HUG 3273K 1 PC FULL VALLEY PLATE KIT 383/400 VALLEY PLATE, 4 .016" BEADED INT GASKETS, 2 END RAILS WITH FASTENERS $117.50 This valley plate is designed to work with standard port size, including ported heads or manifolds and is only 1/4 the weight of aluminum valley covers. They not only look nice, but they fit nice too! No, they do not work with raised port heads. These valley covers are designed to work with manfifolds that DO NOT have a heat crossover passage that hangs below the intake port openings. That includes most single plane intakes. Dual plane intakes with the heat crossover passage must be modified to use our valley cover.  The heat riser passage and any ports that interfere with the valley plate from laying flat on the manifold (refer to PHOTO 1 below) must be milled off (refer to PHOTO 2 below). When using our valley plate the heat passage is blocked off at the heads and is non-functional.                 PHOTO 1                                   PHOTO 2         Plenty of room for ported heads! Hughes Engines Exclusive! Side gaskets only. Can be uses as Standard or Max Wedge port sizes (2.375"/2.650" x 1.280") Hughes Engines special, composition material w/ silicone bead.