Dart 42411000 Single Plane High-Rise Intake Manifold for Small Block Chevy

The Dart 42411000 Iron Eagle/Pro1 intake manifold is a single-plane, high-rise design engineered to deliver maximum horsepower at higher RPM ranges for Small Block Chevy engines. This performance intake is specifically designed for standard port location 23-degree cylinder heads and features a 4150-style carburetor flange.

Key Features:

• Single-plane high-rise design optimized for maximum power output at high RPM
• Extended runner dividers equalize port length and feature radius treatment for consistent cylinder-to-cylinder fuel distribution
• Optimized runner cross-sectional area maintains high mixture velocity for maximum torque production
• Angled runners provide smooth air/fuel mixture transition from carburetor to ports
• Dual distributor hold-downs simplify timing adjustments and installation
• Scalloped manifold flanges provide clearance for center water outlets
• Raised water cross-over and air gap design insulates intake charge from engine heat
• Integral bosses for nitrous injector installation
• Bosses provided for rear coolant line connections

Compatible with 4150 and 4500-style carburetors, this manifold is ideal for race and high-performance street applications where upper RPM power is critical. The air gap design and thermal insulation features help maintain cooler, denser intake charges for improved performance.