Chevy BBC 454 High Volume Billet Aluminum Slimline Water Pump They come available as stock

They come available as stock replacements (straight bolt) or with splayed outer bolt holes

Speedmaster intake manifold bolts are rated at 170

Pro Street

They are manufactured from aluminum and have a natural finish

These kits include all of the necessary external block freeze plugs

Chevy BBC 454 High Volume Billet Aluminum Slimline Water Pump They come available as stockSpeedmaster high volume water pumps have a ribbed aluminum housing and a heavy duty ball roller bearing assembly. Most Speedmaster water pumps have a bigger impeller and larger cavity size to flow 40 percent more coolant than stock. Choose long or short styles in a natural or shiny polished finishes. Get high flow for your car with Speedmaster water pumps.