How Do You Build A High Performance 350 Engine?
Without question, the 350 is General Motor’s most popular small-block engine, both for street and high-performance applications. First produced in 1968, the 350 featured a surprising amount of power for its size. However, the 350 can be made to produce substantially more power than it did from the factory. The key to building horsepower with the 350 is improving its restrictive stock fuel delivery and exhaust systems. Parts selection is critical, so always consult the various manufacturers to determine which type of component is best for the engine’s intended purpose. Replace the cylinder heads with aluminum aftermarket heads. Within the cylinder heads are the valves, which are partially responsible for directing air and fuel into the combustion chambers. The 350’s stock valve sizes are relatively small and therefore restrictive. Aftermarket heads feature larger valves, which allow a greater quantity of air and fuel to reach the combustion chambers, which increase the engine’s power ou
