Derale Performance High Output Dual RAD Fan & Shroud Kit # DER-16928 Cylinder Head Model 4150

Model 4150

Stepped acceleration Chamber Increases Exhaust Gas Velocity and Maximum Flow

Holley's wedged floats feature a reinforced float bracket assembly that allows more fuel to flow through the bracket--especially when using bottom-feed needles and seats

High output fuel flow

Ford 289 302W CVF Billet Pulley Kit Suit R/H W/Pump 3 Bolt # SBFE1KIT-CVF-HF

Derale Performance High Output Dual RAD Fan & Shroud Kit # DER-16928 Cylinder Head Model 4150Derale Performance High Output Dual RAD Fan & Shroud Kit # DER 16928 Electric Fan, Dual, 13 in. Diameter, Puller, 4,000 cfm, Black, Plastic, Each Puller: Yes Pusher: No Fan Diameter (in.): 13. 00 in. Fan CFM Range: 4,000 4,099 Maximum Fan CFM: 4,000 cfm Fan Quantity: Dual Electric Motor Type: Brushed Height (in.): 13. 875 in. Width (in.): 28. 625 in. Thickness (in.): 3. 250 Number of Blades: 11 blades Maximum Fan RPM: 1,670 rpm Blade Material: Plastic