Choke Block-Off Plate - SBC

The Choke Block-Off Plate - SBC by Edelbrock is an essential component for small-block Chevrolet engine builders and hot rod enthusiasts transitioning to fuel injection or modernizing carburetor setups. This precision-machined plate eliminates the factory choke passage, allowing you to clean up intake manifold ports and optimize fuel distribution without the complexity of a functional choke system. Whether you're building a street engine, a track-focused small-block, or restoring a classic with modern fuel delivery, this block-off plate provides a straightforward solution that improves flow characteristics and reduces unnecessary port restrictions.

Manufactured by Edelbrock—a trusted name in performance intake systems and engine modifications—this SBC block-off plate is engineered to seal the choke passage completely, preventing any coolant or intake charge leakage that could compromise engine efficiency. The compact design measures 5.8 inches in length with a lightweight profile of just 0.21 lbs, making installation straightforward without adding unnecessary weight. The plate's precision fit ensures a reliable seal against the intake manifold, eliminating the need for external choke tubes or vacuum lines that clutter the engine bay and create potential failure points in aging vehicles.

This block-off plate is ideal for small-block Chevrolet engines (262, 283, 305, 327, 350, 400 cubic inches) equipped with Edelbrock or compatible intake manifolds. It's particularly valuable when converting to carburetor systems without choke requirements or when switching to fuel injection where the factory choke cavity serves no purpose. Installation requires basic hand tools and minimal mechanical skill, making it accessible to DIY builders and professional shops alike. Ensure manifold compatibility before ordering, as this plate is specifically designed for SBC (small-block Chevrolet) applications and will not fit big-block variants or other engine families.