Notes: Non street legal. Splayed valve GM corporate. 1.92" port size. perforated steel core with anti stick coating material. Port shape: round.

Notes: Non street legal. Splayed valve GM corporate. 1.94" port size. perforated steel core with anti stick coating material. Port shape: round.

Notes: Non street legal. Large race port. 1.55" x 1.55" port size. perforated steel core with anti stick. Port shape: square.

Notes: Non street legal. Raised, Brodix 12B, 2000, 1.78" x 1.70" port size. perforated steel core with anti stick coating material. Port shape: D.

Notes: For high performance engines only. Stock. 1.38" x 1.38" port size. perforated steel core with anti stick coating material. Port shape: square.

Notes: Non street legal. Brodix track I. 1.53" x 1.63" port size. perforated steel core with anti stick coating material. Port shape: D.

Notes: Non street legal. 18° Pro Action. 1.74" x 1.60" port size. perforated steel core with anti stick coating material. Port shape: rectangle.

Notes: Non street legal. 18° adapter plate multiple bolt patterns, 2.00" port size. perforated steel core with anti stick coating material. Port shape: round.

Notes: Non street legal. SB2 Mirror port. 1.90" port size. perforated steel core with anti stick coating material. Port shape: round.

Notes: Non street legal. Hooker and Stahl combination adapter plate, 1.81" port size. perforated steel core with anti stick coating material. Port shape: round.