The ALUMINATOR: - 4.6L (281 cubic inches) - 8.5:1 compression ratio (nominal) - Forged pistons - H-beam connecting rods - Forged steel crankshaft - Aluminum block M-6010-A46SC - Blue cam covers M-6582-A54 - Assembled long block with 2003-04 Mustang Cobra cylinder heads and camshafts - Includes 2003-04 Mustang Cobra timing chain cover, water pump, Cobra windage tray and oil pan - Fits 2003-04 Mustang Cobra - Built with all NEW PARTS - Does not include oil cooler/oil filter adapter