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Return to Parts List Category : D- Big Block (Low Deck) : Gaskets & Valley Plates : Intake & Base ARE AR392 BATWING GASKET HOLDERS $30.00 The AR392 side shields (batwings) provide a seal surface between the valley plate and the cylinder head when using a ported heads. The factory bathtub type gasket works just fine with unported heads but the bathtub gasket does not provide a good sealing surface when the heads are fully ported. Aftermarket heads such as the Trick Flow 240 heads require the intake gasket to be located precisely or else the intake flow will restricted. The AR392 side shields allow the intake gaskets to be positioned perfectly over the ports.     For Standard 440 ports, not for Max Wedge ports Related Parts: ARE AR300A Valley Plate - B Engine