SKU: OTRAC10519
MPN: AC10519
The Air Cleaner Base 4412 w/HEI Offset from OTR FILTERS is a precision intake manifold component engineered for classic and custom carbureted engines, particularly those running HEI (High Energy Ignition) distributor systems with non-centered mounting requirements. This base plate serves as the foundation between your carburetor and intake manifold, ensuring proper fuel-air mixture delivery while accommodating offset distributor configurations that prevent interference with carburetor linkage and throttle controls. Built for enthusiasts restoring vintage muscle cars, street rods, and modified small-block engines, this component is essential when working with tight engine bays or custom intake setups.
The HEI offset design is critical for applications where a centered distributor would conflict with carburetor linkage or hood clearance in modern engine bay conversions. OTR FILTERS engineered this base with precision machining to maintain proper gasket sealing surfaces, preventing vacuum leaks that would compromise idle quality and fuel economy. Weighing just 2.3 lbs with compact dimensions (15.3 x 3.7 x 15.4 inches), this component integrates seamlessly into tight installations without adding unnecessary weight or bulk. The offset configuration allows you to position the HEI distributor away from the carburetor's primary axis, maintaining full throttle response and eliminating mechanical binding that plagues poorly engineered adaptations.
This air cleaner base is ideal for hot rodders, engine builders, and mechanics performing fuel injection conversions or HEI retrofits on carbureted platforms. Compatibility depends on matching your specific intake manifold bolt pattern and carburetor flange diameter—verify your engine's configuration before ordering. Installation requires proper gasket sealing compounds and attention to torque specifications to prevent carburetor float bowl flooding or air leaks. Whether you're building a period-correct restoration or a modern restomod with vintage aesthetics, the Air Cleaner Base 4412 w/HEI Offset delivers the precision fitment and offset geometry required for trouble-free engine management.
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