Chevy SBC 350 Vortec LowRise Aluminum Intake Manifold [Black] Our dual plane big block

Our dual plane big block manifold is now available with rectangular ports

When good looks are important

These rods incorporate a special doweled cap for specific cap-to-rod alignment and are profiled with extra clearance for stroker applications

Protect your eyes with style

the IAC valves adjust the airflow to improve motor idling

Chevy SBC 350 Vortec LowRise Aluminum Intake Manifold [Black] Our dual plane big blockThe Speedmaster LowRise Manifolds are our lowest profile manifold and is also the only one that is street legal on pollution controlled vehicles. It is set up to accept a spread bore carb but comes with an adapter plate that permits the use of square bore carbs. To remain street legal with a square bore carb, you must use one that is also approved as street legal for your application.