Speedmaster 1-147-046 Fits Ford 351W Windsor LowRise Intake Manifold Satin

This Speedmaster LowRise manifold for 351w engines is the ultimate street performance manifold for this engine. It provides good top end power without sacrificing bottom end torque. Its long runner dual plane design provides the best of both worlds. Best with an aggressive street cam. For street, use a 600-750 cfm vacuum secondary or double pumper carb. For competition, use a 750-850 cfm double pumper. This manifold has a number of features not found in similar competitive manifolds. It includes a rear water crossover passage which can provide for more balanced cylinder head temperatures and a cooler running engine. It also has correctly positioned nitrous bosses for those of you who would like to add port nitrous injectors to your engine. Remember that every Speedmaster manifold is 100% pressure tested to discover any air, water, or exhaust leaks before you install it on your engine.

• Lowest profile manifold and street legal on pollution controlled vehicles
• Great top end power without sacrificing bottom end torque
• Cast from steel molds for a tighter grain
• Pressure tested formaximum performance