Fuel Gas Hose Line. Spark Plug Wire Looms. You may also like. For Big Block Chevy 454 Rectangle Port Bare Aluminum Cylinder Head 124cc 345cc. Big Block Chevy Performance Aluminum Cylinder Head. Features Angle Spark Plug. Rectangle Intake Ports 345cc Runner 124cc Combustion Chamber. Accepts 2.300 Intake Valve 1.88 Exhaust Valve. Package: Including All Items In The Picture. Note: Professional Installation Is Highly Recommended. DESCRIPTION --Big Block Chevy Performance Aluminum Cylinder Head --Features Angle Spark Plug --Rectangle Intake Ports 345cc Runner 124cc Combustion Chamber --Accepts 2.300 Intake Valve 1.88 Exhaust Valve --Package: Including All Items In The Picture. The item "For Big Block Chevy 454 Rectangle Port Bare Aluminum Cylinder…