SKU: RPCR9136
UPC: 859828913609
MPN: R9136
The 1-inch phenolic carb spacer – open design from Racing Power Co-Packaged is a fundamental carburetor accessory engineered for serious engine builders and performance enthusiasts seeking reliable manifold isolation. This spacer sits between your carburetor and intake manifold, creating a thermal break that reduces heat transfer from the engine block to your fuel mixture. Whether you're tuning a street engine, vintage rebuild, or precision carbureted performance application, this component addresses one of the most overlooked factors in carburetor efficiency: temperature control and fuel atomization consistency.
Phenolic material is the industry standard for carb spacers because it exhibits superior insulating properties compared to aluminum or cast iron, maintaining cooler inlet charge temperatures without adding significant weight. The open-design configuration allows unrestricted air passage and fuel distribution, preserving the original carburetor's flow characteristics while the 1-inch thickness provides adequate thermal isolation to stabilize fuel vaporization across the RPM range. This particular Racing Power unit measures 7.85 x 1.25 x 8.8 inches and weighs just over 1 pound, making it a bolt-on solution that requires no modifications to existing carburetor or manifold mounting surfaces.
Experienced mechanics and engine builders rely on phenolic carb spacers to improve cold-start behavior, reduce vapor lock in high-heat environments, and promote more consistent jetting across load conditions. The open design makes this spacer compatible with a wide range of carburetor styles and intake manifold configurations, from stock to performance applications. Installation is straightforward—remove your carburetor, install the phenolic spacer with appropriate gaskets, and reinstall your carb using the existing mounting hardware. For any carbureted engine where fuel temperature stability or manifold heat isolation matters, this Racing Power component delivers measurable tuning control at a reasonable investment.
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