How do you measure a Chevy water pump?

Measuring a Chevy Water Pump
To measure a Chevy water pump and determine whether it is a long or short pump, there are a few methods you can use:
1. Shaft Measurement Method:
– A more accurate way to determine the type of water pump is to measure the shaft. For a small block Chevy (SBC), a long water pump shaft measures 7 inches, while a short pump shaft measures 5 5/8 inches. For a big block Chevy (BBC), a long water pump shaft measures 7 1/4 inches, and a short pump shaft measures 5 3/4 inches.
2. Mounting Flange to Hub Surface Measurement:
– Another method involves measuring the water pump from the mounting flange to the hub surface. This measurement can help identify the type of pump currently installed in the vehicle.
3. Front to Back Measurement:
– Short water pumps measure from the front to the back where it mounts on the engine block to the pulley flange. For small block engines, short water pumps measure 5 5/8 inches, and for big block engines, they measure 5 3/4 inches.
4. Hand Test:
– When applying the “hand test,” a short water pump will not allow your fingers between the pump and timing cover, while a long water pump will provide a finger’s width of space between the pump and timing cover.
It’s important to note that a long or short water pump may be used on any Chevy V8 engine (Gen I SB – Gen II BB) as long as the correct pulleys are used and the belts are in alignment.

How to tell the difference between long or short Chevy water pump?

And the shorter pump is well the short version. But it’s much easier to ID’d them on the workbench. Than it is when the pumps are mounted on the front of the motor. That’s.

How do you calculate the size of a motor pump?

A motor is one of the most important components in a pump.
Then, use the following formula to calculate the appropriate motor size: hp x 3.14 = rpm. For example, if a pump requires 2 hp and you want it to operate at 700 rpm, then the motor size would be 2 x 3.14 = 6.14 hp and the rpm would be 700/6.14 = 100 rpm.

What is the sizing of the pump?

Pump sizing involves matching the flow and pressure rating of a pump with the flowrate and pressure required for the process. The mass flowrate of the system is established on the process flow diagram by the mass balance.

What is the difference between short and long water pumps on small block Chevy?

On short water pumps, you most likely wouldn’t be able to stick a finger between the back of the water pump and the front of the timing chain cover. With a long water pump, you will be able to. In summary, if there’s about a 1″ gap then it’s long, if it’s right up against the timing chain cover then it’s short.

Are all Chevy 350 water pumps the same?

And to answer your initial question, NO all water pumps are not the same. You can buy ‘reverse flow’ pumps, hi-volume pumps, etc. etc. But, unless you intend to race this vehicle, just put a stock water pump back on….IF you need one.

Are all small block Chevy water pumps the same?

When it comes to both small and big block Chevy V8 engines, there are essentially two different types of Chevy water pumps—a long style and a short style.

Is big block Chevy small block Chevy water pump the same?

One of the questions we commonly get is what water pump is right for my Chevy V8, whether it be a small block or big block Chevy. The reason for this is Chevy developed two different types of water pumps for these engines: a short-type and a long-type.

How are water pumps measured?

The capacity of a pump has two components, the pump discharge rate and the discharge pressure. The discharge rate is normally measured in gallons per minute (gpm) in English units or liters per second (lps) in metric units.

How do you size and select a pump?

Before you can select a pump that will fit your needs, you must know four things: 1) the total head or pressure against which it must operate, 2) the desired flow rate, 3) the suction lift, and 4) characteristics of the fluid.

How do I know what size water pump I need?

Use the pump flowrate calculation: Divide the container volume by the length of time it took to fill up to get the flow rate. 5 gallons / 1 minute = 5 gallons per minute. 5 gallons /30 seconds (0.5 minutes) = 10 gallons per minute.