Carb Insert 2in Tall Open

The Carb Insert 2in Tall Open from Wehrs Machine is a precision carburetor spacer designed for serious engine builders and high-performance automotive enthusiasts. This restrictor plate insert serves as a critical component in fuel system calibration, allowing tuners to optimize air-fuel mixture distribution and manage induction temperatures without sacrificing throttle response or driveability. Whether you're running a street-legal build or a dedicated race engine, a properly selected carburetor spacer insert is essential for achieving peak efficiency and consistent performance across varying load conditions.

Machined from lightweight aluminum in natural finish, this 2-inch tall open-design spacer delivers precise dimensional control with a 5.85 x 2.45 x 6.25-inch footprint and weighs just 0.8 lbs. The open configuration allows maximum airflow while the 2-inch height provides optimal spacing geometry for manifold-to-carburetor alignment, reducing fuel puddling in runners and improving cold-start characteristics. Wehrs Machine's spacer system components are manufactured to tight tolerances, ensuring consistent bore alignment and repeatable gasket sealing—critical factors that prevent vacuum leaks and erratic idle behavior that plague imprecise spacer kits.

This Carb Insert 2in Tall Open is ideal for carburetor-equipped engines ranging from small-block Chevys to big-block strokers, classic muscle car restorations, and vintage drag race platforms. Installation requires standard gasket surfaces and compatible intake manifold register—ensure your carburetor bore and manifold flange dimensions align with Wehrs specifications before ordering. Mechanics and engine builders often pair this spacer with complementary Wehrs Machine components to achieve fully integrated fuel system tuning that maximizes both horsepower and reliability.