fits model: Camaro, Chevelle. make: Chevrolet. year: 1967-68.

( Manufacturer Part Number: 3906657 ), ( Type: Water Pump Pulley ), ( Vintage Part: Yes ), ( Universal Fitment: No )
The Chevrolet 3906657 water pump pulley is a crucial component for the cooling system of 1967 and 1968 Chevrolet Camaro and Chevelle models equipped with the 396-427 cubic inch engines. This pulley is specifically designed for use with air conditioning (A/C) and smog systems.
This water pump pulley is made of high-quality materials that ensure durability and reliability. It features a cast aluminum construction, which not only makes it strong enough to handle the demands of the engine but also keeps its weight to a minimum for optimal performance. The pulley's surface is finished with a smooth, polished coating that not only looks great but also reduces friction and wear.
The design of this water pump pulley allows it to fit perfectly on the crankshaft of the engine, and its dimensions are precisely engineered to accommodate the belt tensioner and other components of the cooling system. The pulley's bore size is 2.5 inches, and its overall diameter is 10 inches.
One of the unique features of this water pump pulley is its ability to accommodate the additional drives required by the air conditioning and smog systems. The pulley has three grooves for the serpentine belt, allowing it to power the water pump, alternator, and power steering system, as well as the A/C compressor and smog pump.
Installing this water pump pulley is a straightforward process. It comes with all necessary hardware, including bolts and washers, and can be installed using standard hand tools. The pulley also includes a new water pump gasket to ensure a proper seal and prevent leaks.
In summary, the Chevrolet 3906657 water pump pulley is an essential upgrade for any 1967 or 1968 Camaro or Chevelle with the 396-427 engine and air conditioning or smog systems. Its high-quality construction, precise fitment, and ability to accommodate multiple drives make it a must-have component for any serious restorer or performance enthusiast.
The Chevrolet 3906657 Water Pump Pulley is a crucial component in the cooling system of 1967-68 Camaro and Chevelle models with 396-427 engines. When considering purchasing this part, it's essential to weigh the pros and cons to ensure it's the best decision for your specific situation.
Pros:1. Improved Cooling Efficiency: A new water pump pulley can help improve the cooling system's efficiency, ensuring that the engine operates at optimal temperatures.
2. Reliability: A worn-out or failing water pump pulley can lead to cooling system issues, which could potentially cause damage to the engine. Replacing it with a new one ensures reliability and peace of mind.
3. Aesthetic Appeal: If you're restoring or customizing your 1967-68 Camaro/Chevelle, replacing the old water pump pulley with a new one can contribute to the vehicle's overall appearance and value.
Cons:1. Cost: A new water pump pulley can be an expensive investment, especially when considering the labor costs for installation.
2. Availability: Depending on the specific model and year of your Camaro/Chevelle, finding a new water pump pulley may be challenging, leading to potential delays in the repair process.
3. Installation Complexity: Installing a water pump pulley can be a complex process, requiring specialized tools, knowledge, and time.
Recommendation:Considering the pros and cons, purchasing a Chevrolet 3906657 Water Pump Pulley for your 1967-68 Camaro/Chevelle with a 396-427 engine is generally a good investment. The improved cooling efficiency, reliability, and potential aesthetic appeal make it worth the cost, despite the complexity of installation and potential availability issues.
If you're uncomfortable with the installation process, consider hiring a professional mechanic to ensure the job is done correctly. Alternatively, you can explore aftermarket options which might be more cost-effective but ensure they are of good quality and fit your specific engine and vehicle model.
In conclusion, a new water pump pulley is a significant investment but one that can contribute to the longevity, reliability, and overall performance of your classic Camaro/Chevelle.
Big block Chevy 3 groove water pump. Some short water pump with A/C and smog applications.