Carb Spacer 4500 4 Hole .500in

The Carb Spacer 4500 4 Hole .500in from ALLSTAR PERFORMANCE is a precision-engineered carburetor spacer designed for serious performance builds and competition applications. Built for the 4500-series Dominator flange pattern, this spacer sits between your intake manifold and carburetor to optimize fuel and air distribution while managing heat transfer to the fuel bowl. Whether you're tuning a drag racing engine or maximizing carburetor response on a street performance build, this half-inch spacer provides the thermal isolation and flow characteristics that separate amateur setups from dialed-in competition platforms.

Constructed from durable plastic, the Carb Spacer 4500 features a 2-inch bore diameter and a 0.5-inch thickness that creates an effective air gap between your hot intake manifold and the carburetor base. This thermal barrier reduces fuel vaporization and boiling in the fuel bowl—a critical factor in high-heat environments where carburetor stumbling and lean-out conditions kill performance. The four-hole bolt pattern ensures precise alignment and repeatable fitment, while the gray finish provides reliable aesthetics and UV resistance for long-term durability in engine bay conditions.

Mechanics and engine builders trust this spacer for Dominator-pattern carburetors where heat control directly impacts tuning stability and power delivery. The 0.5-inch standoff height is ideal for manifold systems requiring moderate thermal isolation without radical elevation that complicates linkage geometry or hood clearance. Proper installation requires gaskets on both carburetor and manifold sides; verify your intake manifold bolt pattern matches the 4500 Dominator flange before purchase. At 0.71 lbs, the spacer adds minimal weight while delivering measurable gains in fuel temperature control and consistent carburetor performance across a wide rpm range.