The cylinder head is a new casting and not a reconditioned one. The valve sizes are standard 31mm - 27.5mm. Cylinder head has been flow tested with a Superflow SF450, The inlet airflow is enough for 200+bhp. The item "Vauxhall Corsa GSI 1.6XE Ported and Flow Tested Cylinder Head New" is in sale since Monday, October 25, 2021. This item is in the category "Vehicle Parts & Accessories\Car Parts & Accessories\Engines & Engine Parts\Cylinder Heads". The seller is "valiant868" and is located in Boston. This item can't be shipped, the buyer must pick up the item. Brand: Vauxhall Type: Cylinder Head