Edelbrock 8723 Half-Inch Carburetor Spacer – 4-Hole Wood Fiber Laminate

Overview

The Edelbrock 8723 half-inch carburetor spacer is designed to provide a little extra breathing room for your intake path. As an open spacer, it increases plenum volume and adds distance between the carb and the plenum floor, allowing air and fuel to flow with a touch more room to settle. Built from a wood fiber laminate, this spacer blends structural stability with heat-insulating properties, aiming to help minimize heat transfer to the carb. Results can vary by engine setup and driving conditions, so consider it as a tuning option rather than a guaranteed improvement.

How it influences performance

In practice, adding plenum volume and a small additional gap to the plenum floor can affect how air and fuel mix reaches the engine at different throttle positions. The half-inch spacing offers a balance between space for airflow and a compact overall height. The 4-hole pattern is designed to distribute flow across the throttle plate, which may help smooth transitions between idle and higher throttle and reduce abrupt changes in mixture during shifts in load.

Key advantages

• 4-hole design may improve low-RPM torque and throttle response
• Damps reversion effects at the carb for steadier operation during throttle changes
• Wood fiber laminate provides heat insulation to help limit heat transfer to the carb
• Open spacer approach supports increased plenum volume and a larger carb-to-plenum distance

Materials, dimensions, and specs

• Material: Wood Fiber Laminate
• Package Dimensions: 8.25 L x 11.5 H x 0.75 W inches
• Package Weight: 0.75 pounds
• Country of Origin: United States
• Part number: EDL-8723

Practical notes and use cases

Designed for situations where you want more plenum space or a greater carb-to-plenum floor distance without changing other components. It suits street-driven builds, applications facing varied ambient temperatures, or setups where a spacing adjustment is part of a broader tuning plan. As with any spacer upgrade, consider your engine, carburetor, and intake configuration to determine if this half-inch option aligns with your goals.

Additional considerations

For installation planning, note the spacer’s dimensions and weight, and verify compatibility with your Edelbrock carburetor and intake manifold. Proper installation practices help ensure consistent performance and reliable operation over time.