SKU: BSPBLK90119
UPC: 800770109862
MPN: BLK90119
The Thermostat Housing -20AN Straight Up Chevy Black from Billet Specialties is a precision-engineered water neck designed for Small Block Chevy engines requiring custom cooling system routing. This component serves as the mounting point where your upper radiator hose connects to the engine block, directing coolant flow while maintaining system integrity under heat and pressure.
Constructed from lightweight aluminum and finished in black anodize, the Thermostat Housing -20AN Straight Up Chevy Black resists corrosion while maintaining the professional appearance expected in engine bays. The straight-up design with a 20 AN male inlet provides the exact fitment and flow characteristics serious Chevy builds require for both street and competition applications.
Engine builders, hot rod enthusiasts, and performance shops standardize on Billet Specialties components for Small Block Chevy restorations and modifications. This thermostat housing excels in custom carburetion setups, ensuring optimal coolant flow in tight engine compartments where traditional angled water necks may create clearance conflicts.
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