fits model: 305, 350. make: Chevrolet, Rochester. year: 1985.

( Brand: Rochester ), ( Manufacturer Part Number: 17085239 ), ( Type: Chevy Gmc Truck Carb ), ( Oe/oem Part Number: 5.7l V-8 )
The Rochester 17085239 Quadrajet 4-barrel carburetor is a critical component of the 1985 Chevrolet 305/350 engine, providing optimal fuel and air mixture for efficient combustion and optimal performance. This particular Quadrajet carburetor is specifically designed for the 1985 Chevrolet model, ensuring a perfect fit and seamless integration with your vehicle's engine.
The Rochester Quadrajet 4-barrel carburetor features four barrels, each with its own intake valve, which allows for a larger air and fuel mixture to be drawn into the engine cylinders. This increased fuel and air mixture results in more power and better performance, making it an excellent choice for both daily driving and performance enthusiasts.
The Rochester 17085239 Quadrajet carburetor is equipped with a vacuum secondary system, which utilizes engine vacuum to enrich the fuel mixture under high load conditions. This results in smoother and more powerful acceleration, as well as improved fuel efficiency.
The carburetor also features a high-quality float bowl, which ensures a consistent fuel supply to the engine. The float bowl is designed to hold a sufficient amount of fuel, reducing the risk of running out of fuel during extended trips or high-performance driving.
The Rochester 17085239 Quadrajet 4-barrel carburetor is also designed with easy tuning in mind. The carburetor features adjustable primary and secondary metering jets, as well as an adjustable accelerator pump, which allows for fine-tuning of the fuel and air mixture for optimal performance.
In conclusion, the Rochester 17085239 Quadrajet 4-barrel carburetor is a high-quality, reliable, and performance-enhancing component for your 1985 Chevrolet 305/350 engine. Its vacuum secondary system, large air and fuel mixture, and easy tuning features make it an excellent choice for both daily driving and performance enthusiasts.
Pros of buying a Rochester 17085239 Quadrajet 4-barrel carburetor for your 1985 Chevrolet 305/350:1. Reliability: The Quadrajet carburetor is a well-known and reliable design that has been used in many GM vehicles since the 1960s.
2. Fuel Efficiency: Quadrajet carburetors are known for their fuel efficiency, which can help save money on gas over time.
3. Easy to Tune: Quadrajet carburetors are relatively easy to tune, which can help improve performance and drivability.
4. Availability: The Rochester 17085239 Quadrajet 4-barrel carburetor is a common part, so replacement parts and rebuild kits are widely available.
Cons of buying a Rochester 17085239 Quadrajet 4-barrel carburetor for your 1985 Chevrolet 305/350:1. Complexity: Quadrajet carburetors can be complex to troubleshoot and repair, especially for those who are not mechanically inclined.
2. Fuel Quality: Quadrajet carburetors can be sensitive to the quality of the fuel, and may require the use of additives or upgrades to ensure proper operation.
3. Emissions: Older carburetors like the Quadrajet may not meet modern emissions standards, which could require modifications or upgrades to the engine management system.
Conclusion:The Rochester 17085239 Quadrajet 4-barrel carburetor is a reliable and fuel-efficient option for your 1985 Chevrolet 305/350. However, it can be complex to troubleshoot and repair, and may not meet modern emissions standards. If you are mechanically inclined and willing to put in the time to maintain and tune the carburetor, it can be a great option for improving the performance of your vehicle.
Recommendation:If you are considering purchasing a Rochester 17085239 Quadrajet 4-barrel carburetor for your 1985 Chevrolet 305/350, it is recommended to do your research and make sure that you are comfortable with the maintenance and repair requirements. Consider purchasing a rebuild kit or having the carburetor professionally serviced to ensure proper operation. Additionally, make sure to use high-quality fuel and follow any necessary modifications to meet emissions standards. With proper care and maintenance, the Quadrajet carburetor can provide reliable and improved performance for your classic Chevrolet.
Missing choke cover and pull off linkage. I am not familiar with all makes and model's this fits. Will need some work before use. See pics for condition.
It is dusty/dirty and shows some patina from handling sitting on the shelf. Rebuilt Rochester Quadrajet 4-barrel carburetor, ID number 17085239. Please verify part number and pics match your application.