M311 LS3 Cylinder Head Rect-Port Assembled 2004-chevrolet-silverado-2500-hd-esi3581412 Engine Block Mock Up -

Engine Block Mock Up - Small Block Chevy - Steel - Natural - Each

50 Thread - Hurst Logo - Aluminum - Clear Anodized - Universal - Each

500 in Backspace - 5 x 115 mm Bolt Pattern - Aluminum - Matte Black Powder Coat - Each

Hose and Wire Sleeve - Heat Sheath - 1-1/4 in ID - 3 ft - Aluminum / Fiberglass - Silver - Each

Mechanical Cooling Fan - 18 in Fan - 6 Blade - 5/8 in Pilot - Universal Bolt Pattern - Nylon - Black - Each

M311 LS3 Cylinder Head Rect-Port Assembled 2004-chevrolet-silverado-2500-hd-esi3581412 Engine Block Mock Up -Cylinder Head M311 Assembled 2. 165 1. 600 in Valves 273 cc Intake 71 cc Chamber Aluminum LS3 GM LS Series Each