Exhaust Port Blockoffs Aluminum Standard Port Exhaust Port Blockoff - Individual Plates - Aluminum - Black Anodized - Small Block Chevy - Kit

Exhaust Block Off Plates SBC Spread Port Aluminum Exhaust Port Blockoff - 1-Piece - Aluminum - Natural - Spread Port Heads - Small Block Chevy - Pair

Exhaust Gasket - SBC Spread Port (Each) Exhaust Header / Manifold Gasket - Spread Port - Steel Core Laminate - Small Block Chevy - Each

SB Chevy Exhaust Gaskets Brodix Spread Port Round Exhaust Header / Manifold Gasket - 1.810 in Round Port - Steel Core Laminate - Brodix Spread Port - Steel Core Laminate - Small Block Chevy - Pair

Exhaust Block Off Plates Spread Port/Dart Plastic Exhaust Port Blockoff - 1-Piece - 1/4 in Thick - Plastic - Black - Spread Port / Dart - Small Block Chevy - Pair

SBC Exhaust Gasket Set w/Brodix Spread D Ports Intake Manifold Gasket - 0.062 in Thick - 1.6 x 1.74 in Square Port - Graphite Coated Steel Core Laminate - Brodix Heads - Small Block Chevy - Pair