Stock EFI Phenolic Space

The Stock EFI Phenolic Space intake plenum spacer is a specialized thermal management component designed for Small Block Ford engines utilizing factory EFI manifolds. This 1/2-inch tall spacer effectively reduces heat transfer from the intake manifold to the fuel injectors and fuel rails, which helps to lower fuel temperature and enhance atomization during high-load or extended throttle operations.

Constructed from phenolic material, known for its excellent insulating properties, this spacer serves as a foundational upgrade for builders focused on component longevity and consistent engine performance. The Stock EFI Phenolic Space features a precision-molded phenolic body, pre-installed gaskets, and a complete hardware kit, simplifying the installation process by eliminating the need for separate gasket selection and fastener sourcing.

Engine builders, street machine owners, and EFI conversion enthusiasts will find this spacer particularly beneficial when working with Small Block Ford platforms, where managing intake manifold heat is crucial for optimal performance. Its 6 x 3.85-inch mounting footprint aligns with OEM Small Block Ford manifold patterns, ensuring a leak-free installation and reliable performance throughout engine break-in and sustained use.