1-1/2in Air Cleaner Riser

The 1-1/2in Air Cleaner Riser by TRANS-DAPT is an essential component for engine builders and enthusiasts looking to optimize intake manifold clearance and airflow routing. This riser elevates your air cleaner assembly above the engine bay, solving common fitment issues that arise when upgrading to larger carburetors, fuel injection systems, or modified intake manifolds. Whether you're working with a classic hot rod, muscle car, or modern swap project, this spacer provides the breathing room needed for proper hood closure and unrestricted air intake geometry.

Constructed with precision engineering, the 1-1/2in Air Cleaner Riser features a robust design that maintains structural integrity under engine vibration and thermal cycling. The 1.75-inch mounting interface accommodates standard air cleaner bases while the full 1-1/2-inch vertical rise creates adequate space between the carburetor or fuel injection assembly and the underside of the hood. This straightforward spacer design eliminates complex modifications, allowing you to maintain original air cleaner diameter and filter element compatibility while achieving the height clearance necessary for reliable engine operation.

This adapter works best for builders tackling engine swaps, carburetor upgrades, or manifold replacements where standard air cleaner positioning creates interference with hood clearance or intake geometry conflicts. The lightweight 2.55-pound design ensures minimal impact on your system while delivering the functional spacing every serious performance build demands. Installation is straightforward—simply position the riser between your air cleaner base and mounting surface, secure with existing hardware, and verify adequate hood clearance before final assembly.