LPFIDI

LPFIDI's 1-inch ported phenolic carburetor spacer is a 4-hole adapter that isolates heat, maintains a cooler carburetor base, and fits square-bore 4-barrel carburetors such as Holley 4150/4160 on small- and big-block V8s. This spacer is molded from high-strength phenolic resin and machined with four...

LPFIDI's 3/4" cast-aluminum carburetor adapter converts square-bore 4-barrel carburetors to Quadrajet-style spread-bore manifolds (and can be flipped to reverse the adaptation). This adapter kit is a purpose-built spacer that lets you mount common square-bore 4-barrel carburetors (Holley, Carter/AFB and similar) onto Quadrajet spread-bore intake...