Weiand Stealth High-Rise Dual Plane Intake Manifold

The Weiand Stealth intake manifold series represents decades of aluminum performance engineering, carrying forward a legacy that traces back to Weiand's founding in 1937 as one of the industry's earliest dedicated performance intake manufacturers. Completely redesigned from the ground up, the Stealth line delivers a measurable improvement over previous-generation dual plane manifolds, leveraging modern computer-aided design, CFD airflow simulation, and precision manufacturing to push the boundaries of street and strip performance.

At the core of the Stealth series is a high-rise dual plane, 180° design featuring a newly engineered plenum and long, separated runners. This architecture produces exceptional bottom-end and mid-range torque while still delivering the high-RPM horsepower output that rivals a single-plane manifold — giving enthusiasts a broader, more usable power curve across the entire RPM range.

Key Features:

• High-rise dual plane design for a wide, usable power band from idle to high RPM
• Redesigned plenum and long, separated runners for optimized air/fuel distribution and maximum power delivery
• CNC-machined castings for precise fit and exact port matching to the cylinder heads
• Square bore carburetor mounting flange accommodates a wide range of aftermarket carburetors
• Designed to accept most stock hardware including coolant lines, vacuum lines, coils, and brackets with minimal modification
• Quality aluminum construction for excellent durability, efficient heat dissipation, and reduced weight over cast iron

Ideal Applications:

• High-performance street and highway driving
• Street/strip and bracket racing
• Marine performance builds
• RV, tow vehicle, and heavy-duty applications
• Drag racing classes including Super Stock, Super Gas, and Super Comp
• Vintage, nostalgia, and show car builds

The Weiand Stealth series is engineered to complement aggressive camshaft profiles, high-performance ignition systems, and free-flowing exhaust. Whether you're building a classic muscle car restoration, a serious street/strip machine, or a marine performance combination, the Stealth intake manifold delivers the airflow technology, broad torque curve, and proven reliability that Weiand has been trusted for since 1937.