Aluminum Cylinder Head Rectangle 124cc 345cc Port Bare Fits BBC Chevy 454 of 2Pcs. Big Block Chevy Performance Aluminum Cylinder Head. Cylinder Head Material: Aluminum. Spark Plug Style: Angle. Intake Port Volume: 345cc. Combustion Chamber: 124cc. Intake Valve Size: 2.300. Exhaust Valve Size: 1.88. Including All Items In The Picture. Professional Installation is Highly Recommended (No Instruction Included). The item "BBC Aluminum Cylinder Head Rectangle 124cc 345cc Port Bare Chevy454 of 2 pcs" is in sale since Friday, December 27, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts". The seller is "rod-speed-racing" and is located in Rowland Heights, California.…