1in Phenolic Carb Spacer Swirltorque

The TRANS-DAPT 1in Phenolic Carb Spacer Swirltorque is an essential intake manifold component designed for carburetor-equipped engines seeking improved air distribution and thermal isolation. Built from phenolic material, this 1-inch thick spacer sits between the carburetor and intake manifold, allowing tuners and engine builders to optimize fuel atomization and combustion efficiency. Whether you're restoring a classic muscle car, tuning a street engine, or perfecting carb setup on a race platform, phenolic spacers have become the standard choice for serious builders who demand reliable performance without sacrificing longevity.

Phenolic material excels at insulating the carburetor from engine heat, reducing fuel vapor lock and creating a more stable fuel charge entering the intake manifold. The Swirltorque design features a square bore configuration optimized for enhanced fuel vaporization and swirl promotion within the intake tract, translating directly to more complete combustion and measurable torque gains in the mid-range RPM band. At just 1.44 lbs, this spacer adds minimal inertia while the included gasket and hardware eliminate sourcing delays—everything needed for a clean, professional installation arrives in one package.

Carburetor enthusiasts, hot rodders, and vintage engine rebuild specialists will appreciate the straightforward design and proven track record of phenolic spacers in both street and competition environments. The 4-hole pattern ensures compatibility with standard square-bore carburetors across a wide range of applications, from small-block Chevy and Ford platforms to classic Mopar builds. Installation is straightforward for any mechanic familiar with carburetor removal and reinstallation; simply replace the existing gasket with the included hardware, torque to specification, and enjoy improved throttle response and engine stability immediately.