Fuel injection systems deliver fuel to the engine in your 1978 K35/K3500 with precise electronic control, helping support efficient combustion and consistent engine performance. By accurately regulating fuel delivery, these systems can improve starting, throttle response, and overall drivability.
OPGI offers fifty Fuel Injection parts designed to fit your vehicle correctly. From EFI conversion kits and throttle body assemblies to fuel rails, pumps, and related components, you’ll find quality parts from trusted brands including FiTech and Edelbrock to support both restoration upgrades and modern performance conversions.
Every purchase is backed by our Price Match Guarantee. Plus, with OPGI’s 60-day return policy, you can shop confidently when selecting parts for your 1978 K35/K3500. Orders ship quickly, or you can visit our Southern California showroom to see select components in person.