X AUTOHAUX 105° Swivel Water Neck Thermostat Housing for Chevy V8s — Polished Aluminum, O‑Ring & Bolts

The X AUTOHAUX 105° swivel water neck thermostat housing kit is a polished aluminum elbow assembly with gasket, O-ring and bolts designed to redirect coolant on Chevrolet small- and big-block V8 engines.

This aluminum 105° water neck replaces the factory neck on a wide range of Chevy V8s, including SBC and BBC engines from 283 through 502 cubic inches. Finished with polished aluminum, the elbow allows a rotated thermostat outlet to better fit custom intake manifolds, radiator hoses, or clearance-limited engine bays. The kit includes the water neck, an accessory piece, an O-ring for sealing, and two mounting bolts for a straightforward swap when dimensions match your original thermostat housing location.

Will this water neck fit my Chevrolet small- or big-block engine?

Compatibility centers on bolt pattern and thermostat bore size; this kit is built for common Chevrolet SBC/BBC thermostat housings used on 283, 302, 305, 327, 350, 383, 396, 427, 454 and 502 engines. It follows the standard outlet orientation but rotates the neck 105° to accommodate hose routing or aftermarket intakes.

• Fits many OEM-pattern Chevy thermostat housings for small- and big-block V8s.
• Designed for engines listed above—verify bolt spacing and bore diameter first.
• Polished aluminum construction matched to typical aftermarket plumbing.

How does the swivel 105° angle help during installation?

The 105° elbow changes outlet direction so hoses clear headers, intake manifolds, or accessories. By rotating the thermostat outlet away from obstructions, it simplifies routing and reduces hose kinks that can impede coolant flow or cause premature wear.

• Redirects hose path to avoid interference with engine components.
• Helps achieve a neater, less stressed hose routing for longevity.
• Useful when installing aftermarket intakes or tight-fitting accessories.

What materials and sealing parts are included for reliability?

The housing is cast from aluminum alloy with a polished finish for corrosion resistance and visual appeal. The kit comes with an O-ring and two bolts; an accessory component is included to match specific installation needs. Proper gasket and torque are essential to prevent leaks.

• Aluminum alloy housing reduces weight and resists corrosion.
• Included O-ring provides the primary seal at the thermostat bore.
• Two bolts supplied for secure mounting; inspect threads and torque to spec.

Can I use this water neck on both stock and modified cooling setups?

Yes—this water neck suits stock replacements and many modified cooling systems that require a different outlet angle or polished appearance. Always confirm fitment details and hose diameters to ensure compatibility with radiators, hoses, and thermostat sizes in your specific build.

• Works for stock replacements if bolt pattern and bore match.
• Common choice for custom plumbing on performance or restoration builds.
• May require matching hose ends or adapters for nonstandard hose sizes.

Who this is for: The X AUTOHAUX 105° swivel water neck thermostat housing kit is aimed at DIY mechanics, restorers, hot-rod builders, and performance enthusiasts working on Chevrolet small- and big-block V8s who need an alternate coolant outlet angle or a polished finished housing. Purchasers should confirm bolt pattern and thermostat bore compatibility before ordering, and have basic hand tools and torque specs for installation. This kit is a practical solution when clearance, hose routing, or aftermarket intake geometry prevents use of the original straight thermostat housing.