Billet Thermostat Housing - Black Suit Holden 253-308, with optional heater outlet,

Suits Holden 253 308 (GM Australia V8) Swivel with an optional Heater Barb fitting which can be blocked off with a -6ORB port plug (sold separately).

Accepts Chevy 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 - AF59-2091