Genuine Rochester Re-manufactured Direct Replacement Carburetors for your 1974 454 Corvette. No Core Charge Hassle! This carbs arrive with base and air horn gaskets ready to bolt on and go for a spin. Flow bench tuned per application to start and run well although some fine tuning may improve performance due to engine wear and vacuum characteristics, altitude, modified engine package, fuel quality, etc. Carbs are assembled using Viton seals and chemical resistant well plug epoxy to be Ethanol safe and provide miles of service. This is not a numbers matching program, but good recycled Rochester Quadrajet set up and tuned to be a direct replacement on your engine. Chart below is a reference to assist you in carburetor identification.
NOTE: Always purge fuel line by cranking engine before connecting to new carburetor or after any carburetor service. Most carburetor service failures are due to immediate rust/dirt contamination caused by the high volume of fuel transfer during initial float bowl fill.