Chevy SBC 350 EFI 1957-95 Inj Ports HiRise Aluminum Intake Manifold [Polished] Our single plane big block

Our single plane big block manifold is now available with Dominator carburetor flange

The GM LS1 Modular Ram Air Intake Manifold was designed for high-performance applications where induction system height is not limited

laying a strong platform to build on

Constructed from durable aluminum

Welcome to the new era in fuel injection

Chevy SBC 350 EFI 1957-95 Inj Ports HiRise Aluminum Intake Manifold [Polished] Our single plane big blockStep 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.