Chevy SBC 350 1957-95 MID-AIR™ MidRise Aluminum Intake Manifold [Polished] Minor machining may be required

Minor machining may be required on some applications

The LS (Gen3/4) platform has many design benefits over the earlier SBC engine designs

They feature cast iron construction and are powdercoated to protect against corrosion

short block engines are the solution to a hassle-free power build

They also help to insulate the carburetor from engine heat and provide clearance for linkages

Chevy SBC 350 1957-95 MID-AIR™ MidRise Aluminum Intake Manifold [Polished] Minor machining may be requiredThe Speedmaster MidRise Air design features the identical plenum and runner design as the normal MidRise. The main difference is that there is an open area under the plenum chamber. This feature is sometimes called an air gap design. The air flowing under the plenum provides a cooler charge for the incoming air with less heat transfer from the engine. This cooler air charge provides additional power and torque.