Car & Truck Parts. You may also like. Alu Cylinder Head Rectangle 124cc 345cc Port Bare Fits BBC Chevy 454 of 2Pcs. 1 Aluminum Cylinder Head Rectangle 124cc 345cc Port Bare Fits BBC Chevy 454 of 2Pcs. 2 Features Angle Spark Plug. 3 Intake Port Volume: 345cc. 4 Combustion Chamber: 124cc. 5 Intake Valve Size: 2.300. 6 Exhaust Valve Size: 1.88. 7 Package Includes: As Shown In Our Pictures. This Item Doesn't Come With Installation Guides. We Highly Recommend Professional Installation. 1 Aluminum Cylinder Head Rectangle 124cc 345cc Port Bare Fits BBC Chevy 454 of 2Pcs 2 Features Angle Spark Plug 3 Intake Port Volume: 345cc 4 Combustion Chamber: 124cc…