Speedmaster 1-147-051 Ford 260 289 302 Windsor Mid-Rise Air Gap Intake Manifold Black

The Speedmaster 1-147-051 is a mid-rise air gap intake manifold designed for Ford small block 260, 289, and 302 Windsor engines. This aluminum manifold features a black powder-coated finish for durability and a clean appearance under the hood.

Key Features:

• Air gap design with open area under plenum chamber reduces heat transfer from engine
• Cooler intake charge delivers improved power and torque output
• Mid-rise profile provides excellent clearance for most hood applications
• Identical plenum and runner design to standard mid-rise manifolds for proven performance
• Lightweight aluminum construction
• Black powder-coated finish resists corrosion and engine bay heat

The air gap design allows cooler air to flow beneath the plenum, isolating the intake charge from engine heat. This results in a denser air/fuel mixture entering the combustion chamber, producing measurable gains in horsepower and torque compared to traditional single-plane designs. Ideal for street performance and mild racing applications on Ford Windsor small block engines.