Speedmaster Chevy GM LS Inline Billet Aluminum Thermostat Housing Neck with O-Ring PCE191.1024

The Speedmaster PCE191.1024 is a precision-engineered billet aluminum thermostat housing neck designed for Chevy and GM LS-series engines. This inline housing neck replaces OEM units and provides a durable, lightweight alternative for LS engine cooling system upgrades and custom builds. The unit comes complete with an O-ring seal to ensure a leak-free connection at the water inlet.

Crafted from high-quality billet aluminum, this thermostat housing neck delivers superior strength and heat dissipation compared to cast iron originals. It's ideal for engine builders, hot rod enthusiasts, and performance shops looking to upgrade cooling system components or adapt aftermarket water pump configurations to their LS engine platform. The precision-machined design ensures proper fitment and reliable operation in street, strip, and racing applications.

Key Features & Benefits

• Billet Aluminum Construction: Lightweight yet strong material provides excellent durability and thermal management for LS engines.
• Includes O-Ring Seal: Factory O-ring seal is supplied for a secure, leak-free connection at the water inlet.
• GM LS Engine Fitment: Designed specifically for Chevy and GM LS-series engine platforms.
• Inline Thermostat Housing: Direct inline design simplifies cooling system plumbing and adapter configurations.
• Precision Billet Machining: High-quality manufacturing ensures tight tolerances and reliable performance.

Specifications

Ideal Applications

• LS engine cooling system upgrades and replacements
• Custom engine builds and hot rod projects
• Performance cooling system modifications
• Water pump adapter and plumbing configurations