The Edelbrock Victor Three-piece manifold is available for use with most 13°-18° engines. Offered in two different flange thicknesses, standard and +.550" (.990") thicknesses, will accommodate applications from a standard 9" deck, 18° cylinder head to 9.3" deck, most Dart 13° high-port cylinder heads. Right and left halves machined separately and are assembled with shoulder bolts and 3/32" O-ring.