Moroso Chevrolet Big Block/Small Block Extended Water Filler Neck

When you're working on a Chevrolet Big Block or Small Block engine, especially if you've modified the cooling system or are running a tight engine bay, getting a good seal on your water filler neck can be tricky. This extended water filler neck from Moroso is designed to give you a bit more reach and a more secure connection for your radiator hose. It's a well-built piece that helps ensure your cooling system stays properly filled and pressurized, which is key to preventing overheating.

Moroso makes this filler neck from aluminum, which is lightweight and resists corrosion. The extended design means it can accommodate variations in hose length or radiator positioning that might make a standard neck difficult to connect. It's a straightforward part that addresses a common challenge when building or modifying these classic Chevy engines, helping you get a solid connection for reliable cooling performance.