Tapered Spacers Aluminum 1/4in ID 1/2in Long

Tapered spacers aluminum 1/4in ID 1/2in long by ALLSTAR PERFORMANCE are precision engineered components designed for engine builders, fabricators, and performance enthusiasts who demand exact spacing and alignment in critical applications. These tapered aluminum spacers serve as essential intermediaries in engine bay assemblies, transmission mounting, and custom fabrication work where precise dimensional control directly impacts component fit, clearance, and overall assembly integrity. The tapered design allows for gradual load distribution and accommodates angular mounting surfaces that standard flat spacers cannot address.

Constructed from aluminum for lightweight strength and corrosion resistance, these spacers feature a 1/4 inch inner diameter (ID) bore sized for standard fastening applications and measure 1/2 inch in thickness to provide adequate spacing for typical engine block, intake manifold, and accessory mounting scenarios. The tapered geometry—naturally wider at one end than the other—distributes clamping forces evenly across angled or irregular surfaces, reducing stress concentration and preventing fastener loosening under vibration. Aluminum construction offers excellent machinability for custom modifications while maintaining the strength-to-weight ratio critical in performance applications. The natural finish resists light oxidation while remaining compatible with protective coatings or anodizing for enhanced durability.

These tapered spacers excel in engine rebuild projects, transmission adapter plates, and custom intake or carburetor mounting where surface angles or irregular geometry require graduated spacing. The universal design suits small-block and big-block applications across Chevrolet, Ford, Mopar, and general fabrication projects requiring precision spacing. Installation is straightforward—position the tapered spacer between mounting surfaces with the narrow end facing the fastener entry point, then torque fasteners to engine-specific specifications. For optimal results, pair with Grade 8 or stainless steel fasteners and verify clearance for accessories like alternators or power steering components before final assembly.