Notes: Vortec design port; port dimensions W-1.31" x H-2.37"; 0.125" thick;

Notes: Port 1.08 x 2.11", 1/8" thickness. Fast burn.

Notes: Port 1.08 x 2.11", 1/8" thickness. Fast burn. 10 pc.

Notes: Non street legal. Aluminum heads with non conventional port and bolt locations. Raised runner Chevrolet and Pontiac 867 head. 1.31" x 2.02" port size. Composite with coating. No exhaust crossover openings or blocking shields. Brodix 12SP-P, 18SP, Standard, 12 x 12 18°. Cutout for Brodix water fitting included. 0.060" thickness.

Notes: Non street legal. Aluminum heads with non conventional port and bolt locations. Chevrolet 18° high port. Pro topline cast iron. 1.25" x 2.15" port size. Composite without coating. No exhaust crossover openings or blocking shields. 0.120" thickness.

Notes: Non street legal. Aluminum heads with non conventional port and bolt locations. Chevrolet 18° split. Valley cover gasket. Composite with coating. No exhaust crossover openings or blocking shields. 0.060" thickness.

Notes: Non street legal. Cast iron and aluminum heads with conventional port and bolt locations. Trim to fit. 1.25" x 1.90" to 1.40" x 2.30" port size. Composite with Printoseal®. No exhaust crossover openings or blocking shields. Cutout for Brodix water fitting included. 0.060" thickness.

Notes: Non street legal. Cast iron and aluminum heads with conventional port and bolt locations. Large race port. 1.38" x 2.28" port size. Composite with coating. No exhaust crossover openings or blocking shields. Brodix 12SP-S. Cutout for Brodix water fitting included. 0.120" thickness.

Notes: Non street legal. Cast iron and aluminum heads with conventional port and bolt locations. Trim to fit. 1.25" x 1.90" to 1.40" x 2.30" port size. Composite with coating. No exhaust crossover openings or blocking shields. 0.120" thickness.

Notes: Non street legal. Aluminum heads with non conventional port and bolt locations. Raised runner Chevrolet and Pontiac 867 head. 1.31" x 2.02" port size. Composite with coating. No exhaust crossover openings or blocking shields. Brodix 12SP-P, 18SP, Standard, 12 x 12 18°. Cutout for Brodix water fitting included. 0.120" thickness.