1649CI 1970-1981 Pontiac Buick and Olds "11 Bolt" water pump XJ 1L chevrolet k20/k2500 pickup 65-63

1L chevrolet k20/k2500 pickup 65-63 L6 230 3

7L CHECKER MARATHON 70-69 V8 307 5

3L GMC C15/C1500 PICKUP 72-68 V8 307 5

6L GMC SUBURBAN 67-63 V8 327 5

2L 2 Outlets Plymouth Suburban 1958 - 1961 318 5

1649CI 1970-1981 Pontiac Buick and Olds "11 Bolt" water pump XJ 1L chevrolet k20/k2500 pickup 65-63Classic Pontiacs run hot. Flowkooler designed a high flow 11 bolt pump with a CNC machined billet impeller with increased vane count and a reduced clearances between the backing plate and impeller vanes. It achieves greater flow rates, higher head pressure and a more efficient flow and it can be used with the serpentine conversion kits. The impeller color is due to Type II Class II military grade surface coating which protects against corrosive