Carb Insert 1in Tall Open

The Carb Insert 1in Tall Open from WEHRS MACHINE is a precision aluminum carburetor spacer designed for engine builders and performance enthusiasts seeking to optimize fuel mixture distribution and intake manifold flow dynamics. This open-style insert functions as a thermal barrier and tuning element, allowing builders to fine-tune the carb-to-manifold interface without replacing the entire carburetor assembly.

Constructed from lightweight aluminum, the Carb Insert stands 1 inch tall and features an open design that maximizes flow through the center bore while minimizing restrictions. This design helps eliminate fuel puddling and heat soak that commonly occur with sealed spacers, enhancing overall performance.

This product is ideal for small-block Chevrolet, Ford, and Mopar builders running Holley, Edelbrock, or Carter carburetors on naturally aspirated street and strip engines. Weighing just 0.46 pounds, this insert installs between the carburetor and manifold using existing fastener holes—no drilling or modification required—making it an ideal bolt-on upgrade for engine builders who demand simplicity without sacrificing performance tuning flexibility.