Chevy 350 Water Pump Replacement

The water pump in a Chevy 350 engine is responsible for circulating coolant throughout the engine. When it fails, it can cause severe damage to the engine and should be replaced as soon as possible. The replacement process begins by removing any wiring or hoses connected to the pump, loosening the bolts that hold it in place, and then lifting out the old unit from its housing.

Once removed, the new pump can be installed using a gasket sealer and tightened with new bolts provided with your new pump kit. Once secured you will need to connect all wiring/hoses back up to their original places before refilling your radiator with coolant and running your engine until warm.

Replacing the water pump in your Chevy 350 is an essential part of keeping your vehicle running smoothly. Fortunately, it’s a relatively simple job that can be completed without specialized tools or expertise. The process involves draining the coolant, removing the old water pump and pulley, installing a new gasket and mounting hardware, and then bolting on the new water pump before refilling with fresh coolant.

Not only will this help to keep your engine running efficiently but it will also extend its life expectancy significantly!

How to replace a small block chevy waterpump 350 5.7

How Many Labor Hours Does It Take to Replace a Water Pump?

Replacing a water pump can be a time-consuming task, depending on the make and model of your vehicle. Generally speaking, it takes an experienced mechanic between 3 to 8 hours of labor to replace a water pump. The exact amount of time depends on the complexity of your car’s engine as well as any complications that may arise during removal or installation.

If you’re not confident in tackling this job yourself, then it’s best to leave it to a professional who has experience with similar types of repairs. With their help, they can get the job done quickly and efficiently so you don’t have to worry about potential problems down the line.

Are All Small Block Chevy Water Pumps the Same?

The answer to the question, “Are all small block Chevy water pumps the same?” is a resounding no. Although there are certain similarities among them, each model of small-block Chevy water pump is designed for a specific application and has unique features that make it suitable for that particular engine type. For example, early Vortec models have a single hole inlet while later models may have two or three holes.

Additionally, some pumps feature an adjustable bypass valve which allows you to adjust cooling flow rate. Other differences include different sizes of impellers and mounting positions as well as various sealing materials used between the pump body and housing gaskets. Ultimately, when selecting a replacement small block Chevy water pump it’s important to match up the exact specifications with your vehicle’s requirements in order to ensure optimal performance and longevity of both engine components and accessories like radiators or air conditioning systems connected to it.

What’S the Difference between a Long And Short Water Pump on a Small Block Chevy?

A long water pump and a short water pump are both components of the cooling system on a small block Chevy. The main difference between them is that the long water pump has an extended body for added clearance, which makes it better suited to vehicles with tight engine compartments than its shorter counterpart. Long water pumps require more mounting bolts, but they tend to be less prone to vibration due to their greater stability in comparison with short ones.

Additionally, since there’s more distance between the fan blades and other parts of the cooling system when using a long water pump, it provides improved airflow – making it ideal for high-performance applications where additional cooling is required. In contrast, because of its smaller size and reduced weight compared with a long one, a short water pump tends to be preferred by builders looking for extra space in cramped engine bays or those who want maximum power output from their vehicle’s motor.

What are Signs That Your Water Pump is Going Out?

If you’re noticing strange sounds coming from your water pump, it may be a sign that the pump is going out and needs to be replaced. Common signs of a failing water pump include chirping noises, grinding or squealing like metal on metal. You might also notice a decrease in pressure or reduced flow rate when you turn on the faucet.

Other symptoms could include leaking coolant from around the seal of the pump, overheating and poor cooling performance or visible corrosion along the shafts of older models. If any of these warning signs are present, it’s best to replace your water pump as soon as possible before more serious damage occurs to other parts of your vehicle’s engine system.

Chevy 350 Water Pump Replacement


Chevy 350 Water Pump Replacement Cost

The cost to replace a water pump on a Chevy 350 engine can vary depending on the parts and labor required. Generally speaking, it will cost around $400-$500 for replacement of the water pump plus any additional parts that are necessary. Labor costs may also be included in this estimate, so make sure to ask your mechanic about that before you decide on a repair plan.

1987 Chevy Truck Water Pump Replacement

Replacing the water pump in a 1987 Chevy truck is relatively straightforward. You will need to drain the coolant, remove all of the components that are blocking access to the water pump, and then unbolt it from its mounting bracket. Once removed, you can replace it with a new one and reassemble everything back together again.

Make sure you use new gaskets when reassembling so as not to cause any leaks down the road.

1990 Chevy 350 Water Pump

The water pump in a 1990 Chevy 350 is located on the front of the engine and is responsible for circulating coolant throughout the system. It features a cast-iron body with an impeller mounted inside to draw coolant from the radiator into the engine block and then back out again. The design has been time tested and proven to be reliable, making it one of Chevrolet’s most popular water pumps for decades.


In conclusion, replacing the water pump on a Chevy 350 engine is an important step in maintaining your vehicle. Although it may seem like a daunting task, it can be completed relatively quickly with some basic tools and knowledge. If you are unable to do the job yourself, there are numerous professional mechanics who specialize in this type of repair that can help get your engine running smoothly again.


  • Zayn

    John Zayn Smith is a renowned truck enthusiast, automotive industry expert, and author. Beginning his career as a mechanic, Zayn's curiosity led him to explore all facets of the trucking world, sharing his insights through in-depth articles on His knowledge spans truck mechanics, trends, and aftermarket modifications, making him a trusted resource for both professionals and hobbyists. Outside writing and mechanics, Zayn enjoys off-roading, truck shows, and family time. Follow his work for the latest in truck-related news and tips.

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