Notes: Ultra seal; port dimensions W-1.30" x H-1.36"; use w/o-ring headers;

Notes: Ultra Seal; round port; 1.63" port diameter;

Notes: Ultra seal; brodix spread port aluminum heads; port dimensions W-1.65" x H-1.60";

Notes: Port dimensions W-1.30" x H-1.36"; use w/o-ring headers;

Notes: Ultra Seal; 18 deg. Roll Over head; adapter plate side; 2.05" port diameter;

Notes: Ultra seal; all D port including RAM air III; port dimensions W-1.5" x H-1.94";

Notes: Ultra seal; small square race port; port dimensions W-1.45" x H-1.48";

Notes: Aluminum. Round port. Chevy big block.

Notes: Copper Seal; 1.63 port diameter;

Notes: Round port;