The Chevelle water pump on your 1969, 1970, 1971, or 1972 300, SS, Nomad, or Malibu classic is crucial to keeping your engine cool and performing well. Without a properly functioning small block long water pump, your car can over heat and possibly even ruin the engine. The water pump attaches to the block and uses centrifugal force to operate. To locate this part, just follow your lower radiator hose. Luckily, your classic's water pump has telltale signs of problems. There is a weep hole to let you know if coolant is leaking out. Also, if the internal fins or blades are damaged, the pump will not work correctly. Skipping or defec tive pulley belts can also often cause problems. All of these elements are major contributing factors to the degradation of your water pump. At first sign of disrepair, invest in a new long small block water pump for your 1969, 1970, 1971, and 1972 Chevelle.
Note: Spacer maybe required for upper alternator bracket to fit correctly.
The Short And Long Of Chevy Water Pumps
Chevelle mechanical short style water pumps measure 5-5/8” high from the shaft down with the pilot shaft diameter measuring 5/8". Long style Chevelle water pumps measure 7” high from the shaft down, and the pilot shaft diameter was 5/8" as well. Do not mix and match pulleys from short and long water pump engines because this will cause pulley misalignment. An easy way to find out what style you have while your pump is still installed on the engine is to try to stick your hand between the water pump and timing chain cover. If you can slip your fingers in-between you have a long, if not you have a short.
| Make | Model | Years |
| Chevrolet | Chevelle | 1969 - 1972 |
