Chevy BBC 454 Rect Port HiRise Aluminum Intake Manifold [Black] Individually milled from super durable

Individually milled from super durable 6061 T6 aluminum billets

They come in tall and short models

They will mount anywhere in the engine to eliminate any clearance issues

let a Speedmaster aluminum Competition series radiator give your high-powered race car the advantage

Speedmaster flexplates are the best on the market

Chevy BBC 454 Rect Port HiRise Aluminum Intake Manifold [Black] Individually milled from super durableStep 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.