1687 1971-1977 Inline 6 cylinder 250/4.1L 4 1/4" tall water pump timing chain cover k3500 pickup

k3500 pickup

General Specifications: Type of Material of Pump Body Aluminum Number of Blades on Impeller 8 CNC Aluminum Direction of Rotation CCW Fan Hub Working Height 3-3/4" Shaft Diameter 5/8" Inlet Outside Diameter 1 3/4" Hose Connections: 1st 2nd Gender F NA Diameter 5/8" NA Threaded Yes NA Other Special Features: 8 blade CNC machined impeller

0L CHEVROLET MALIBU 1976 V8 307 5

0L ford mustang 82-80 V8 238 4

7L CHEVROLET LAGUNA 76-73 V8 400 6

1687 1971-1977 Inline 6 cylinder 250/4.1L 4 1/4" tall water pump timing chain cover k3500 pickupIf you have the 1971 1977 Chevy truck with a 250 4. 1L you might be finding it runs a little hotter now. You might also find heat cycling is occurring with your riser set up. Either way, the 1687 can help the problem. We designed a impeller with an increased vane count and a reduced impeller vane clearance to take care of both problem. It achieves greater flow rates, higher head pressure and a more efficient flow and squeezes that air out of your