Chevy Small Block Long Style, Reverse Rotation, Mech Water Pump

From top to bottom, these mechanical pumps are designed for greater performance and reliability. Cast from A356-T6 aluminum, they are strong and manage heat better than cast iron. They feature an 8-blade, cast aluminum anti-cavitation impeller. Its 5/8" shaft is driven by heavy-duty bearings and seals, and the crank hub is 1/2" thick for added strength. High-flow pump with upgraded internals and 5/8" pilot shaft. For small block Chevy engines 265-400. Reverse rotation for serpentine set-ups. Long neck (7") style pump. These high-flow mechanical water pumps provide that extra cooling power your high-performance engine demands. They are lightweight and flow at a rate up to 40% over stock pumps. Long style used in most passenger cars from 1969 and light trucks from 1973 up till the mid-1990s. It is important to measure to determine pump style. These high-flow mechanical water pumps provide that extra cooling power your high-performance engine demands. They are lightweight and flow at a rate up to 40% over stock pumps. Long style used in most passenger cars from 1969 and light trucks from 1973 up till the mid-1990s. It is important to measure to determine pump style.