Chevy BBC 454 Rect Port HiRise Aluminum Intake Manifold [Black] all components are hand fit

all components are hand fit and assembled in USA for the ultimate in precision fit and finish

Speedmaster high-volume water pumps have a ribbed aluminum housing and a heavy duty ball/roller bearing assembly

Individually milled from super durable 6061 T6 aluminum billets

These kits are specifically designed to deliver the performance you want

made from 4340 round bar to exact tolerances

Chevy BBC 454 Rect Port HiRise Aluminum Intake Manifold [Black] all components are hand fitStep up to the high rpm power of an open plenum with Speedmaster HiRise intake manifolds. These cast aluminum manifolds accept square bore carburetors and are pressure tested to ensure maximum performance. They start to make awesome power around 3,000 rpm.