Subscribe to a magazine

Factory Aem Pump

Back to article View Gallery
6 of 9
Pumps are referred to in gallons per minute (gpm). It's important to match the gpm to the cylinder because each will need a certain amount to work correctly. Your engine and factory pump size are contributing factors when picking out the correct pump. Generally speaking, an aftermarket pump will bolt in place with little to no modifications. In our case we were still able to retain our factory serpentine belt.