Speedmaster 1-147-015 HiRise Intake Manifold Blk for 57-95 Chevy SBC

Chevy SBC 350 HiRise 1957-95 Intake Manifold Black Step 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.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. Step up to the high-rpm power of an open plenum Design for racing applications or for serious street performance Cast from steel molds for a tighter grain and reduction of porosity Pressure tested to ensure maximum performance