If you want to remove the water cooling system from your motorcycle, it’s important to have the DME Racing Water Neck Block Off. This device covers the water neck outlet from the cylinder block (for dry block applications only), making it an essential component. Our Water Neck Block Off can also be drilled and tapped for with a -10 AN water fitting to accommodate a rear mount radiator.
- Suzuki Hayabusa / All Years (G1-G2-G3)
- Suzuki GSX-R1000 / 2001-2008
- CNC machined from lightweight 6061-T6 billet aluminum
- Mounting: Uses factory water pump o-ring seal and neck bolts
- Made in the USA
What is a Water Neck Block Off?
A motorcycle water neck block off is a modification made to a motorcycle’s cooling system. In a liquid-cooled motorcycle, the water neck is a component located at the top of the engine or cylinder head, where the coolant flows into and out of the engine. It serves as the connection point for the upper radiator hose. In some designs, it may also house the thermostat that regulates the coolant flow based on the engine’s operating temperature.
The water neck block off involves removing the water neck and blocking off the associated coolant passages on the engine. This modification is typically done for performance purposes or as part of a custom build where the cooling system is altered to fit specific design requirements.
There are several reasons why motorcycle enthusiasts might choose to perform a water neck block off:
- Simplified Cooling System: Removing the water neck and associated components simplifies the cooling system, which can be desirable for custom builds or projects seeking a cleaner look.
- Aftermarket Cooling System: In some cases, riders may replace the stock cooling system with an aftermarket or custom cooling setup. This might involve using different water necks, radiators, or coolant routing, requiring the removal of the stock water neck.
- Performance Upgrades: Some riders modify the cooling system for high-performance applications to achieve better cooling efficiency, which may involve using a different water neck design.
- Thermostat Bypass: Removing the water neck may also bypass the thermostat if it is causing issues or if a rider prefers to maintain a constant coolant flow, which can help in hot climates or racing conditions.
It’s essential to understand that modifying a motorcycle’s cooling system, including performing a water neck block off, should be cautiously approached. Proper cooling is crucial for the engine’s longevity and performance. Removing or modifying components in the cooling system without careful consideration can lead to overheating issues, engine damage, or reduced performance.
If you are considering a water neck block off or any cooling system modification, consulting with an experienced motorcycle mechanic is crucial.