Billet Thermostat Housing - ChromeSuit Big Block Ford 429-460Brand: AeroflowPart Number: AF64-4037CDescription: Suits Ford Big Block 429 - 460 (Swivel) Accepts Ford Thermostat. The Aeroflow Performance billet thermostat housings area three-piece design that allows for correct positioningof the outlet to suit a large array for applications especially in conversions where small can be an issue. Machined from T6-6061 billet aluminium and allows for a full 360-degree swivel rotation for ease of installation. All Aeroflow Performance thermostat housings feature an O-ring base flange, as opposed to using the factory paper style gasket, this ensured a superior leak free seal. Each thermostat housing outlet can be untreated exposing a female1-1/4”-20 thread to adapt a AN fitting or a largerbarb fitting for custom applications. Available in several anodised finishes. Replacement O-ring and bolts - AF59-2033 Additional Specifications: Centre to Centre ofBolt Holes - 71mm (2-51/64"). Overall Height - 57mm (2-15/64"). Overall Length - 84.50mm (3-5/16"). Width of Body - 66.20mm (2-19/32"). Radiator Hose Size - 38.25mm (1-1/2"). Radiator Hose Angle - 15 Degree.