Do they make a reverse flow water pump for Chevy?

No, there isn't a standard "reverse flow" water pump available for Chevrolet vehicles in the sense that the coolant flow is completely reversed compared to the factory design. The coolant flow direction is dictated by the engine block's passages and the thermostat housing location. Modifying this would require extensive engine modifications and wouldn't be practical or safe.

What some people might refer to as a "reverse flow" is likely related to:

* Different pump designs: There are different types of water pumps (e.g., impeller designs) that might *appear* to flow differently, but the overall direction of coolant flow remains the same within the engine.

* Aftermarket Performance Pumps: Some high-performance aftermarket water pumps might optimize flow and routing for better cooling in specific setups, but they don't fundamentally reverse the flow of coolant through the engine.

If you're considering modifying your Chevy's cooling system, it's crucial to consult with a qualified mechanic experienced with your specific engine model. Improper modification could seriously damage your engine.