Advanced Engine Design 6150 1/2 Inch Carburetor Spacer 4150 Flange Wood Open

The Advanced Engine Design 6150 is a 1/2-inch thick carburetor spacer designed for performance applications. This open-style spacer features a square bore design with a 4150 flange pattern, making it compatible with Holley 4150-style carburetors and similar square-bore configurations.

Key Features:

• 1/2-inch (0.5-inch) spacer height for improved air-fuel distribution
• Wood construction in natural finish
• Open center design promotes better airflow and cooling
• 4150 square bore flange pattern for universal fit
• Helps isolate carburetor from engine heat
• Can provide modest performance gains in certain applications

Carburetor spacers like the AED 6150 serve multiple purposes: they increase plenum volume, improve air-fuel mixture distribution to the intake manifold, and provide thermal insulation between the carburetor and intake manifold. The wood construction offers excellent heat-insulating properties while the open design maximizes airflow for naturally aspirated applications.