Carburetor Spacer - 4500 1.5in 4-Hole L/W Tapered

The Wilson Manifolds Carburetor Spacer – 4500 1.5in 4-Hole L/W Tapered (MPN 024130) is a lightweight aluminum intake manifold spacer designed for small-block and big-block engine combinations requiring Dominator flange carburetor mounting. This black anodized 1.5-inch thick spacer functions as a thermal barrier between the carburetor and intake manifold, reducing heat transfer to the fuel mixture while providing critical carburetor riser height for proper hood clearance and fuel delivery optimization in street and competition engine builds.

The tapered bore design accommodates the 4500-series Dominator carburetor platform, while the four-hole configuration ensures positive alignment and secure fastening to the intake manifold. At 1.35 lbs, the lightweight aluminum construction minimizes inertial mass without sacrificing structural rigidity. The 1.5-inch height specification is critical for carbureted applications where intake runner scavenging and fuel atomization depend on proper distance from the manifold heat source. Black anodized finish resists corrosion and provides thermal durability in high-heat underhood environments.

This spacer is engineered for builders and tuners restoring or upgrading carbureted engines—classic muscle cars, hot rods, vintage trucks, and circle-track racing applications where Dominator carburetors remain the platform of choice. The tapered design optimizes fuel distribution patterns and reduces percolation caused by intake heat, directly improving cold-start reliability and part-throttle drivability. Whether fabricating a vintage 454, 427, or small-block stroker combination, this manifold spacer provides the precise fitment and thermal management required for dependable carbureted engine operation.