Carb Insert 2in Tall 1.100in DIA Houglass

The Carb Insert 2in Tall 1.100in DIA Hourglass from WEHRS MACHINE is a precision carburetor spacer engineered for serious engine builders and hot rodders seeking fine-tuned intake manifold control. This component sits between your carburetor and intake manifold, allowing you to dial in precise fuel and air mixture distribution while managing heat transfer and manifold gasket sealing. Whether you're building a competition engine, restoring a classic muscle car, or optimizing a street performance setup, this hourglass-profile insert gives you the mechanical advantage needed to maximize combustion efficiency and engine responsiveness.

The hourglass design is critical to carburetor spacer function—the narrowed center diameter of 1.100 inches creates a controlled transition zone that optimizes fuel atomization and charge distribution across all cylinders. Standing 2 inches tall, this insert provides adequate spacing to introduce secondary fuel staging, reduce carburetor heat soak from the manifold, and improve cold-start driveability. The compact footprint (5.55 x 2.6 x 7.4 inches) and moderate weight of 1.695 lbs ensure minimal engine bay intrusion while maintaining structural integrity under sustained boost or high-RPM operation. WEHRS MACHINE's precision machining guarantees tight tolerances and repeatable gasket sealing surfaces, eliminating leaks that compromise performance.

This carb insert is ideal for dedicated carbureted engines—Chevy small-block, big-block, Ford 351C, 427, and classic inline builds all benefit from the thermal and mixture control this spacer delivers. Installation requires only removal of your carburetor, placement of new gaskets on both sides of the insert, and reinstallation—no machine work or modifications needed. Verify your intake manifold bolt pattern and carburetor flange diameter match the 1.100-inch specification before purchase. Pair this with quality multi-layer steel gaskets and threadlock compound for a leak-free, long-lasting seal that survives cylinder heads, ring and pinion swaps, and decades of street or strip duty.